Collective labor disputes and employees’ collective events （stoppage） are the extreme expression form of unharmonious labor relations. On the basis of mediation practice involved in collective labor disputes and employees’ collective events （stoppage） GZFTU has participated in，this research report illustrates the basic situation and main features of collective labor disputes and employees’ collective events （stoppage） happened in Guangzhou. It also analyzes their formation roots and development trends and systematically brings forward the measures trade unions should have to deal with collective labor disputes and employees’ collective events （stoppage）. The research report put forward the suggestions on how to further build harmonious labor relations，and better exert the functions of trade unions in participating in mediation of collective labor disputes and employees’ collective events （stoppage）.