Yun 139 (中国移动云盘, yun.139.com) is a cloud storage service launched by China Mobile in February 2014, developed and operated by China Mobile Internet Co., Ltd. China Mobile is one of China's three major state-owned telecommunications operators. The service is positioned as a personal and family cloud platform, covering storage, sharing, and synchronization across mobile, PC, and TV devices.
Yun 139 offers 20 GB of personal cloud storage plus 20 GB of family cloud storage to China Mobile subscribers, and 10 GB of each to users on other networks. As of 2023, monthly active users reached 190 million, a net increase of 23.74 million year over year, placing Yun 139 second in the Chinese cloud storage industry by user scale. In October 2024, Yun 139 became one of the first services to support Huawei's native HarmonyOS.
Yun 139 requires a Chinese phone number to register, and accessing the service requires a Chinese IP address for stable connections. Purchasing a membership plan also requires a Chinese payment method such as Alipay or WeChat Pay.
中国移动云盘
| Developer | China Mobile Internet Co., Ltd. |
| Platform | iOS, Android, HarmonyOS |
| Launched | February 2014 |
| Registration | Required (Chinese Phone Number) |
| Website | yun.139.com |
| Storage | China Mobile Users | Other Network Users |
|---|---|---|
| Personal Cloud | 20 GB | 10 GB |
| Family Cloud | 20 GB | 10 GB |
Note: China Mobile subscribers receive the full 20 GB allocation for both personal and family cloud at no cost. Users on other networks receive 10 GB each. Additional storage and paid membership tiers with expanded features are available through the app.
Yun 139 uses AI image recognition to automatically categorize uploaded photos by people, scenery, food, location, and time. Photos can be searched by keyword, capture time, or geographic location, with the image recognition engine enabling content-aware photo retrieval across large libraries.
Yun 139 supports backup of WeChat chat files through a dedicated Yun 139 WeChat mini program. This addresses a common pain point for Chinese smartphone users who accumulate large amounts of media and documents inside WeChat that are not automatically backed up to standard cloud storage.
The family cloud space is separate from personal storage and enables synchronized sharing of materials across family members. Content uploaded by one family member is accessible to all, and the service supports playback of family videos directly on TV via the Yun 139 TV client with adjustable playback speed and quality.
Designated sync folders on computers automatically keep local files synchronized with cloud storage across multiple devices. This is designed for users who need consistent access to working files during travel or between office and home machines, without manually uploading after each change.
Yun 139 supports file sharing within groups of up to 500 people without consuming the storage space of individual participants. This is targeted at workplace teams and organizations managing shared documents and assets across large groups.
The cloud notes feature includes real-time voice transcription, meeting recording, and Chinese-English note translation. Notes are synchronized across devices and accessible from any platform where the user is logged in.
Yun 139 supports online conversion between PDF and Word, PPT, Excel, and image formats with in-browser editing. The file collection function lets users send a single collection link to multiple people, with all submitted files automatically saved to a centralized Yun 139 folder for batch review.
Quantum SIM Shield is Yun 139's highest-tier file protection feature. It leverages the security chip embedded in China Mobile's super SIM cards combined with quantum encryption technology to provide tamper-proof and non-repudiation authentication for file access. The feature is available to users who upgrade their physical SIM card to a super SIM through China Mobile.
The secure vault uses a triple verification mechanism requiring three separate factors to access protected files: the mobile device itself, the SIM card, and an independent password. This architecture means that even if a user's password is compromised, access cannot be granted without the physical SIM card and device being present together.
Yun 139 began internal testing of AI intelligent tools in September 2023 and passed regulatory filing for three AI algorithms in April 2024. In February 2025, Yun 139 officially launched DeepSeek Chinese language interaction, integrating the DeepSeek large language model into the platform's cloud productivity features.
Yun 139 uses multiple encryption technologies for both transmission and storage, with data redundancy backup for reliability. File version history management allows users to view and restore previous versions of modified files, providing a recovery mechanism against accidental changes or overwrites.
Yun 139 officially launched nationwide in February 2014, introduced by China Mobile to address common pain points for mobile internet users including insufficient phone storage, difficulty managing WeChat files, and slow cloud drive transfers.
Yun 139 launched Cloud Phone Transfer, allowing users to back up and restore contacts, SMS, apps, photos, videos, and WeChat files with a single tap for quick migration to a new device. This was combined with an update integrating album, notes, and 139 email into a unified interface.
China Mobile introduced an "Everyone Has a Cloud" strategy positioning Yun 139 as the unified cloud entry point for personal and family scenarios. Free storage for China Mobile subscribers was upgraded from 16 GB to 20 GB personal plus 20 GB family cloud. Non-China Mobile users were upgraded from 8 GB to 10 GB each. Full coverage was expanded across PC, TV, and mobile devices.
Yun 139 was among the first eight cloud storage providers to sign the "Self-Discipline Convention for Personal Cloud Storage Service User Experience Protection" in Beijing, under guidance from China's Ministry of Industry and Information Technology, committing to equal upload and download speeds for all user types.
Users reported that newly purchased China Mobile SIM cards were linked to existing accounts, causing strangers' photos and videos to appear in their cloud storage. In the same period, China's Ministry of Industry and Information Technology flagged Yun 139 for mandatory, frequent, and excessive permission requests including reading device information and contacts without user consent. The app was included on the ministry's list of apps infringing user rights and required to complete rectification.
Yun 139 reached 190 million monthly active users by end of 2023, a net increase of 23.74 million year over year, placing the service second in the Chinese cloud storage industry by user scale. Internal testing of AI intelligent tools began in September 2023.
Yun 139 became one of the first cloud storage applications to adapt to Huawei's native HarmonyOS platform, alongside China Mobile Cloud Phone.
Yun 139 officially launched DeepSeek Chinese language interaction on February 8, 2025, integrating the DeepSeek large language model into its cloud productivity features.
BAIDUDL supports downloading files from Yun 139. If you have a Yun 139 share link, you can use our service to download the files directly, no Chinese phone number, account, or VPN required.
Simply choose a plan that fits your file size, enter your Yun 139 link, decryption key, and email into the form, choose a payment method, and pay. We will process the files on your behalf and deliver them to your email with a secure, high-speed download link. Our how-to guide walks through the full process step by step.
中国移动云盘
| Developer | China Mobile Internet Co., Ltd. |
| Platform | iOS, Android, HarmonyOS |
| Launched | February 2014 |
| Registration | Required (Chinese Phone Number) |
| Website | yun.139.com |