New breakthroughs and developments of reform of personnel system of public institutions is the products of reform and opening up in the past over 30 years，and also the result of reviewing reforms in the past. They also provide new space for us to explore the basic laws of personnel management of public institutions，and seek the personnel management mode conforming to the requirements of modern public service institutions. In 1980s，the central government of China changed the unitary mode，in which cadres were managed according to the methods of institutions；in 1990s，the central government proposed the thinking of personnel system reform of “separation，categorization，decentralization，invigoration”；in 2000s，the recruitment system and the post management system were promoted，the reform of personnel system of public institutions took the invigoration of personnel system as the core，and progressed unceasingly. The reform，which takes breaking of stabilization of public personnel relations and promoting short-term recruitment as the features，is not only an important characteristic in the reform of cadre personnel system in China，but also very unique in the international public personnel management field，which is of high value for practice and exploration.