合理解读劳动条件与劳动合同内容的概念,从形式和实质层面明确劳动条件变更和劳动合同内容变更之间的关系,可以确定劳动合同变更的应然界限。我国应完善劳动合同变更制度,在法律上给予用人单位和劳动者单方变更合同内容的权限,使劳动关系得到合理、合法的保障。 Reasonable interpretation of labor conditions and the concept of labor contract content, from the formal and substantive level clear changes in labor conditions and changes in the content of the relationship between labor contracts, labor contracts can be changed to determine the limits. China should perfect the system of changing labor contracts, and give the employer and laborers unilaterally the right to change the contents of the contract in a legal manner so that the labor relations are guaranteed in a reasonable and lawful manner.