The system of labor public interest litigation is a new type of litigation to safeguard the legitimate rights and interests of vulnerable workers. In order to protect public interest from infringement, corresponding legal action mechanisms are set in the continental law system and Anglo American law system. To overcome the shortcomings of its existing legislation and system, China should learn from foreign countries, establish its own system of labor public interest litigation, and diversify the plaintiff in the public interest litigation, so as to establish a reasonable system of allocation of the burden of proof for the specific social vulnerable group.