一些中小民营企业为了跟上日趋激烈的市场竞争步伐,不断地调整其产品结构和生产、销售计划,而这又不可避免地在某种程度上造成了企业生产环境和员工劳动条件的改变,员工与企业劳动合同中有关劳动保护、工作时间及工作报酬等问题也需相应重新加以厘定。那么,用人单位和劳动者之间可否变更原来签订的劳动合同?怎样变更呢?什么情况下可以变更所谓劳动合同的变更,就是在履行劳动合同过程中由于情况发生变化,经双方当事人协商一致,而对劳动合同部分条款进行修改、补充,劳动合同的未变更部分继续有效。劳动合同的变更需要由一定法律事 In order to keep pace with the increasingly fierce market competition, some small and medium-sized private enterprises constantly adjust their product mix and production and sales plans, which in turn inevitably leads to changes in the production environment and labor conditions of their employees. Issues related to labor protection, working hours and remuneration for work should also be reconsidered correspondingly with the corporate labor contract. So, employers and workers can change between the original signed labor contract? How to change it? Under what circumstances can change the so-called labor contract changes, that is, in the performance of labor contracts due to changes in the situation, the two parties through consensus, However, part of the labor contract shall be amended and supplemented, and the unchanged part of the labor contract shall remain valid. Labor contract changes need to be legal