In the practice of administrative trial, the theory of protection norms has recently been taken as a key criterion for judging the plaintiff qualification in administrative litigation of complaint informants, and has a tendency to expand to the general plaintiff qualification. Workers, employers and administrative organs are in a triangular relationship. Workers complain to the administrative organs about the illegal acts of the employers, whilst the administrative organs deal with the employers administratively. Based on the theory of protection norms, the relevant labor laws and regulations serve as protection norms, either for the purpose of protecting the interests of workers or with a conflict resolution scheme that favors the interests of workers. As a result, workers who have made complainants are entitled to the plaintiff qualification in administrative proceedings and can bring an administrative lawsuit on the administrative proceedings.