Social economic development and technological progress provide conditions for the development of multiple labor relations.The legal relationship structure of multiple labor relations,in terms of jurisprudence,are divided into the four types:a)the "Master-slave Structure"where standard labor-employment relations and non-standard labor-employment relations coexist.b)the "Parallel Structure"formed by the coexistence of non-standard labor-employment relations,c)the "Virtual Real Structure"formed by the coexistence of standard labor-employment relations,and d)the Comprebensive Structure"formed by the coexistence of labor-employment relations and labor and employment relations.In line with this, the legal liability of multiple labor-employment relations are classified into "Employer Responsibility","Co-employer Responsibility"and "Joint Liability for Compensation Responsibility"from the two dimensions of "Employer-Employee"and "Employer-Employer".Thus.this complex and cross-structured labor-employment relations increases the difficulty of applying the law in judicial practice.According to the legal thinking of domain,issues beyond the difficulties of the legal discipline of "employment disputes"could be handled with the following measures:a)adopting a typological approch;b)making the necessary separation of the labor-employment relations and the social insurance relations in a systematic manner;c)applying laws and regulations,local regulations and norms in a coordinated way,and d)making certain restrictions,expansions,and exceptional explanations of the documents if necessary to effectively promote the legalization of multiple labor-employment relations.