Founded in January 1993, Zhong Yin is one of the earliest law firms in the form of partnership approved by the Ministry of Justice in China. It is headquartered in Beijing and currently has branch offices in 35 (including the branches established and such in preparation) Mainland cities including Shanghai, Tianjin, Chongqing, Shenzhen, Chengdu, Nanning, Fuzhou, Changsha, Yinchuan, Nanjing, Hangzhou, Shenyang, Xi'an, Hefei, Nanchang,  Wuhan, Kunming, Zhengzhou, Guangzhou, Lanzhou, Xiamen, Jixi, Taizhou, Suzhou, Qingdao, Quanzhou, Ganzhou, Zhuhai, Sanya, Jining, Kunshan, Dongguan, Luoyang, Xiong'an, Wenzhou and established its association law firm with Hong Kong and Macao law firms, ZLF Law Office and its Qian hai branch, which is China's first. It has about 3,000 lawyers and staff members, including more than 500 partners and nearly 2,000 lawyers.

Zhong Yin lawyers actively explore overseas markets, build a global legal service system and strive to lead the way in all practice areas. Zhong Yin lawyers have established strategic partnerships with legal service agencies in more than a dozen countries including the United States, Germany, France, and Canada. A large number of Zhong Yin international lawyers are capable of providing legal services to clients in English, French, Japanese, Korean, German and other languages, which ensures that Zhong Yin’s clients can quickly obtain comprehensive and efficient legal services on a global scale. Excellent services  make Zhong Yin lawyers the most recognized and trusted partners of clients. In recent years, the number of clients, the proportion of market share and the total revenue of Zhong Yin have increased significantly.

Zhong Yin lawyers always adhere to the service concept of "customer orientation, professional cooperation, diligence and conscientiousness, excellence and high efficiency", focus on client needs, give full play to the strengths of Zhong Yin's global legal service system, and integrate the resources of all lawyers and departments of all branches. While providing clients with high-quality and efficient legal services, they can also provide business information to clients and promote business cooperation among clients. Zhong Yin lawyers closely follow national policies and regulations, maintain good working relations with government sectors including the People's Bank of China, China Securities Regulatory Commission, China Banking Regulatory Commission, China Insurance Regulatory Commission, State-Owned Assets Supervision and Administration Commission, China Development and Reform Commission, Ministry of Finance, Ministry of Commerce, Ministry of Industry and Information Technology. They also have excellent business relations and communication channels with other judicial departments at all levels and arbitration institutions at home and abroad. Zhong Yin is a leading standardized, professional, large-scale, internationalized and comprehensive law firm.