The collective turnover of employees in
enterprises has a profound impact on relevant 1978 to 2021，this study selected 102 collective turnover cases and 16 typical
collective turnover organizations and employee groups. Based on the 43 years of
Chinas reform and opening up from cases from five databases of the China
Knowledge Network（CNKI）. Based on code analysis，event analysis，and other case
study methods, the main findings are：the novelty，interruption，and importance of the event intensity of typical collective turnover
cases are quite representative，and the event
space is mainly affected by the size of the enterprise，industry status，and social
influence；The event time is
mainly affected by the level，importance，and irreplaceability of the employees who leave the company
collectively. Typical collective turnover cases need to take into account the background
of the times，legal changes，cultural conflicts，and other macro
factors, which may directly induce collective turnover；In the case of collective turnover，it is more necessary to consider the micro factors such as external
temptation，shareholder turnover
and senior executives cash out，which may
directly lead to collective turnover. The process of Chinas reform and opening
up cannot be ignored when collective turnover cases occur：the place of occurrence changes from coastal to inland；The industry is mainly concentrated in manufacturing，especially after China acceded to the WTO；The level of the employee is expanded from the top to the middle
level and the basic level，and the joint turnover
involving senior high school and the basic level has a greater impact on the
enterprise. The research also refines the macro and micro factor action and
characteristic model of collective turnover and puts forward suggestions on
resolving collective turnover.