The State Administration for Market Regulation (SAMR, 国家市场监督管理总局) imposed over RMB 2.8 billion in advertising law fines across 78,000+ cases in 2025, and foreign-invested enterprises (FIEs) accounted for 12% of total penalty value despite representing less than 3% of all advertisers. China’s digital advertising regulatory framework is complex, multi-layered, and actively enforced — foreign marketers face higher scrutiny and steeper penalties than domestic peers. The regulatory ecosystem spans the PRC Advertising Law (广告法, Guǎnggào Fǎ, revised 2023), the E-Commerce Law (电子商务法, 2019), the Anti-Unfair Competition Law (反不正当竞争法, 2019 amendment), the Personal Information Protection Law (PIPL, 个人信息保护法, 2021), and platform-specific content guidelines from Baidu, Tencent, ByteDance, and Xiaohongshu. Non-compliance can result in fines of up to RMB 10 million, account suspension, and in severe cases, criminal liability. This guide provides a systematic framework for navigating each layer of China’s digital advertising regulations.
Overview of China’s Advertising Regulatory Framework
The PRC Advertising Law (revised April 2023) serves as the foundational regulatory instrument governing all advertising activities in China, including digital and social media advertising. The law applies to any advertisement that reaches consumers within mainland China — regardless of whether the advertiser is a domestic company or a foreign brand with no physical presence in China. The State Administration for Market Regulation (SAMR) is the primary enforcement body at the national level, with local Administration for Market Regulation (AMR, 市场监督管理局) bureaus handling enforcement at the municipal and provincial levels.
The PRC Advertising Law Article 2 defines an advertisement broadly as “any commercial activity that directly or indirectly introduces goods or services” — this encompasses SEM listings, display ads, native content, KOL endorsements, livestream product placements, and even WeChat Official Account articles that promote products. Foreign marketers often underestimate this scope: a Xiaohongshu post showing a product in use without an explicit “广告” label, or a Douyin video where a host praises a product during a casual review, can be classified as unlabeled advertising and attract fines of RMB 100,000–1,000,000 per violation under Article 59.
The regulatory framework operates at three overlapping levels: national law (Advertising Law, E-Commerce Law, Anti-Unfair Competition Law), ministerial regulations (SAMR’s Measures for Internet Advertising, CAC’s content review rules), and platform-specific advertising policies (Baidu’s ad review guidelines, Tencent’s WeChat ad compliance rules, Douyin’s content advertising policies). Foreign brands must comply with all three layers simultaneously — compliance with national law alone does not exempt a brand from platform-specific rules that may be stricter.
Core Prohibitions and Restricted Categories Under the Advertising Law
The PRC Advertising Law enumerates 14 categories of prohibited content under Article 9, including content that threatens national interests, uses national symbols improperly, promotes赌博 (gambling) or迷信 (superstition), or contains obscenity or discrimination. However, the provisions most relevant to foreign brands are those restricting comparative claims, superlative language, and unsubstantiated efficacy claims.
| Restriction Type | Applicable Law | Typical Violation | Penalty Range (RMB) | Examples for Foreign Brands |
|---|---|---|---|---|
| Superlative language (最高级用语) | Advertising Law Art. 9(3) | “Best,” “No. 1,” “Leading,” “Number one” | 200,000–1,000,000 | “World’s best coffee beans” or “China’s leading imported skincare” |
| Unsubstantiated efficacy claims | Advertising Law Art. 16, 17, 18, 28 | Health/beauty claims without SAMR evidence | 100,000–2,000,000 | “Cures eczema” for a moisturizer not registered as a medical device |
| Comparative denigration | Advertising Law Art. 11, 13; Anti-Unfair Competition Law Art. 8 | Explicitly naming competitors negatively | 100,000–500,000 | “Unlike Brand X, our product contains no…” |
| Misleading/false advertising | Advertising Law Art. 4, 28 | Inaccurate data, fabricated testimonials | 300,000–2,000,000 (up to 10× ad spend for false ads) | Claiming “90% of users recommend” without verifiable survey data |
| Unlabeled sponsored content | Advertising Law Art. 14; E-Commerce Law Art. 38 | KOL/KOC posts without “广告” label | 100,000–1,000,000 | Xiaohongshu KOL post about a product without #广告 tag |
| Data privacy violation in ads | PIPL Art. 13–17, 23 | Using personal data for ad targeting without consent | Up to RMB 50 million or 5% of annual revenue | Retargeting users based on WeChat browsing history without consent |
Superlative language enforcement is particularly strict. Claims like “best-selling” (销量第一, xiāoliàng dìyī), “number one” (第一, dìyī), “most trusted” (最受信赖, zuì shòu xìnlài), and even “world-class” (世界级, shìjiè jí) can trigger Article 9(3) violations if not supported by verifiable, third-party-certified data. In 2025, a well-known European luxury brand was fined RMB 800,000 for using “world’s finest leather” (世界最好的皮革) on its WeChat Mini Program — SAMR ruled the claim unverifiable under Article 9(3). Acceptable alternatives include specific, verifiable claims: “crafted from full-grain Italian leather” (采用意大利头层牛皮) or “ISO 9001-certified manufacturing process” (经ISO 9001认证的制造工艺).
Platform-Specific Advertising Rules and Compliance
Each major Chinese digital platform maintains its own advertising review system and content guidelines, which supplement national law and often impose stricter requirements. Baidu, Tencent, ByteDance (Douyin), and Xiaohongshu each operate proprietary ad review systems that pre-screen all paid advertisements before publication. Understanding these platform-specific rules is essential for foreign brands running multi-platform campaigns.
Baidu SEM (百度推广): Baidu’s ad review system requires advertisers to submit a business license and advertising license (广告经营许可证, guǎnggào jīngyíng xǔkězhèng) or demonstrate qualification through an accredited agency partner. All ad copy and landing pages undergo automated and manual review, typically within 1–3 business days. Restricted categories for foreign brands include healthcare, financial services, education, and food supplements — each requiring additional qualification documents. Baidu’s system uses natural language processing to flag superlative language and unsubstantiated claims, scanning ad copy and landing page content simultaneously.
Tencent Advertising (腾讯广告): Tencent’s ad ecosystem covers WeChat Moments, WeChat Official Account (embedded ads), Mini Programs, and Tencent Video. WeChat Moments ads are the most expensive CPM format in China (RMB 100–400/CPM for premium placements) but offer the highest-quality audience data. Tencent’s ad review system requires advertisers to complete a two-step verification: corporate qualification (matching business license to ad account registration) and content review (48–72 hours for first review). Special restrictions apply to alcohol (no imagery of drinking), baby formula (no comparison with breast milk), and financial products (requires SAMR financial advertising approval).
Douyin Ocean Engine (巨量引擎): ByteDance’s advertising platform processes over 10 million ad submissions monthly through automated AI review followed by spot-check manual review. Douyin’s algorithm is particularly sensitive to: exaggerated product claims, misleading before/after imagery, undisclosed AI-generated content (mandatory under ByteDance’s 2024 content transparency policy), and health or beauty claims for products not registered as medical devices or cosmetics under China’s NMPA regulations. Douyin also enforces a strict 15-second minimum for ad content — shorter ads that cannot include all required compliance disclosures are rejected.
Xiaohongshu 聚光 (Jùguāng) Ad Platform: Xiaohongshu’s ad review system emphasizes authenticity and community trust. All sponsored posts must include the platform’s “赞助” (sponsored) or “广告” (advertisement) tag, appearing in the top-right corner of the post. Xiaohongshu actively monitors for “fake reviews” — posts that present paid endorsements as genuine user experiences — which can result in account suspension and removal from search results for 30–90 days. The platform also restricts ads for categories including weight loss products, skin-whitening products with unsubstantiated claims, and imported food without GACC registration numbers.
KOL and KOC Disclosure Requirements
The intersection of the PRC Advertising Law and the E-Commerce Law creates a robust disclosure framework for influencer marketing. Advertising Law Article 14 requires all paid advertisements — including KOL and KOC content — to be clearly identifiable as advertisements. E-Commerce Law Article 38 further requires platform operators to flag “advertising” content and refrain from misleading consumers through undisclosed commercial endorsements. SAMR’s 2024 Special Action on Internet Advertising Enforcement specifically targeted influencer marketing, conducting 12,000+ inspections and issuing RMB 47 million in fines across 2,300+ cases.
For foreign brands engaging KOLs or KOCs, the disclosure rules vary by platform format. Acceptable disclosure formats include:
- WeChat OA: Clear “广告” label at the top of the article, before any promotional content. Standard practice: “本文为广告” (This article is an advertisement). Article title must not be misleading.
- Xiaohongshu: “广告” or “赞助” tag in the top-right corner of the post image. Tags from the platform’s built-in brand partnership tool (品牌合作, pǐnpái hézuò) are accepted. Custom hashtags like “#广告合作” or “#品牌合作” also satisfy the tag requirement.
- Douyin: On-screen text “广告” or “品牌合作” overlay for the first 3 seconds of video. In-livestream verbal disclosure at the beginning of each product segment. In-video caption “本视频为广告内容” (This video is advertising content).
- Bilibili (B站): On-screen text “本视频包含品牌赞助内容” (This video contains sponsored brand content) at 0:00–0:05. Verbal disclosure in the first 15 seconds.
The legal responsibility for accurate disclosure rests jointly with the brand and the KOL under Advertising Law Article 38. If a KOL fails to label content as advertising, both the KOL and the brand can be held liable. Foreign brands should include explicit disclosure obligations in KOL contracts, specifying the exact tag format, placement, and duration for each platform. Contracts should also include indemnification clauses for SAMR fines arising from improper disclosure.
PIPL and Data Compliance in Digital Advertising
The Personal Information Protection Law (PIPL, 个人信息保护法, effective November 1, 2021) has fundamentally reshaped how foreign brands can collect, process, and use user data for digital advertising targeting. PIPL Article 13 requires explicit, specific consent for data collection used in behavioral advertising — general consent accepted in global markets (e.g., “by using this service, you agree to cookies”) does not satisfy PIPL standards.
Under PIPL Article 23, transferring personal data to a third party (including ad platforms like Tencent Advertising or ByteDance) for targeted advertising requires separate, opt-in consent from the user. Foreign brands must implement a layered consent mechanism: first-layer consent for essential functionality (account creation, order fulfillment) and second-layer, opt-in consent for marketing cookies and ad targeting data sharing. A 2025 study by the China Academy of Information and Communications Technology (CAICT) found that only 23% of foreign-brand digital campaigns in China had implemented PIPL-compliant consent mechanisms for advertising data collection, exposing the remaining 77% to potential penalties of up to RMB 50 million or 5% of annual revenue under PIPL Article 66.
Cross-border data transfer for advertising analytics presents a separate compliance challenge. Under the Data Security Law (DSL, 2021) and the Cybersecurity Administration of China (CAC) Measures for Data Export Security Assessment (2022), transferring user data collected in China to overseas servers for advertising analytics purposes requires either a CAC security assessment (for data classified as “important data”) or entry into standard contracts with individual consent. Most foreign brands serving ads to China-based users should ensure all advertising analytics data is processed and stored on China-based servers — using platforms like Baidu Tongji, GrowingIO, or Sensors Data — rather than transferring raw user data to overseas analytics platforms.
Advertising Compliance Management Checklist for Foreign Brands
Follow this ordered checklist to establish a compliant digital advertising operation in China. Each step includes the regulatory basis and a practical action item.
- Register advertising qualifications — Ensure your WFOE or China entity holds a valid business license (营业执照) with “advertising” (广告) as a registered business scope item. If advertising is not in the scope, submit a business scope modification to SAMR — allow 15–30 working days for approval.
- Set up platform ad accounts with compliant qualifications — Register with Baidu Tuia, Tencent Ads, Douyin Ocean Engine, and Xiaohongshu 聚光 using your WFOE license. Each platform requires separate qualification review (1–5 business days). Foreign brands without a China entity must engage a SAMR-licensed advertising agency as the registered advertiser.
- Establish a content pre-approval process — Implement a two-stage review: automated keyword scan for superlative/restricted terms (use SAMR’s published keyword blacklists), followed by legal review by a PRC-qualified attorney familiar with Advertising Law enforcement trends.
- Implement PIPL-compliant consent mechanisms — Deploy layered consent popups on all brand-owned digital assets (WeChat Mini Program, Tmall store, brand website) that separate essential cookies from marketing/advertising cookies. Ensure opt-in consent for ad targeting data is logged with timestamp and consent version.
- Audit all KOL/KOC contracts for disclosure requirements — Review all influencer agreements to ensure they specify platform-appropriate disclosure tags, include SAMR fine indemnification, and require pre-approval of all sponsored content before posting.
- Set up ongoing monitoring — Assign a compliance officer or designate a qualified third-party agency to monitor SAMR enforcement circulars, platform ad policy updates, and active KOL/KOC content for disclosure compliance. SAMR publishes monthly enforcement bulletins (typical response time to violations: 30–90 days from detection to fine notice).
- Prepare penalty contingency budget — Set aside RMB 200,000–500,000 as an advertising compliance contingency reserve for first-year operations. SAMR fines for first-time violations by FIEs typically range from RMB 50,000–300,000 for moderate infractions (compared to SME-level fines of RMB 10,000–50,000 for equivalent violations by domestic brands).
Penalties and Enforcement Trends
SAMR’s enforcement of digital advertising regulations has intensified significantly since 2024. The total value of advertising fines nationwide reached RMB 2.8 billion in 2025, up 34% from RMB 2.1 billion in 2023. Key enforcement priority areas for foreign brands include undisclosed KOL content (47% of FIE violations), superlative/unsubstantiated claims (32%), and data privacy violations in ad targeting (14%).
Penalties scale with company revenue and violation severity. Under Advertising Law Article 55, false advertising can attract fines of 3–5× the advertising expenditure for moderate violations, and 5–10× for severe cases (defined as causing harm to consumers or involving health-related products). SAMR also publishes violation details on its public database (国家企业信用信息公示系统, National Enterprise Credit Information Publicity System), which can negatively impact a brand’s tax credit rating, customs clearance speed, and government subsidy eligibility for 1–3 years after the violation. Foreign brands should treat advertising compliance as an operational risk management priority rather than a legal checkbox — the collateral consequences of a public SAMR fine extend well beyond the penalty amount.
Where to Go From Here
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