Labor disputes have their own special characteristics, and existing doctrines and legal provisions are not sufficient to solve the dilemma of allocating the burden of proof between workers and employers. Through the comparison of the systems of the two legal systems and the evolution of China’s laws and regulations on the obligation of the parties to make statements and the obligation to file documents, it is found that there exists a legal environment for the introduction of the obligation to explain the case in China. On the basis of eliminating the controversy of traditional argumentation on the duty to state the facts, the relationship between the duty to state the facts and the system of allocation of the burden of proof is argued. The obligation to explain in the case has an important value in balancing the burden of proof of both parties in labor disputes and in discovering the objective truth, and it should be constructed and perfected in terms of the subject of the system of the obligation to explain in the case, the time of its application, the prerequisites, and the legal consequences.