How to deal with the social security merger between the two places?

Legal analysis: it is impossible to merge the two places by paying social security at the same time. Only one social security relationship can be retained, and the personal balance in the other social security account will be returned to me.

Legal basis: Notice of Ministry of Human Resources and Social Security Municipality on Printing and Distributing Opinions on Several Specific Issues Concerning the Transfer and Continuation of Basic Endowment Insurance for Employees in Urban Enterprises. Adjust and standardize the policy of migrant workers participating in endowment insurance. All localities should, in combination with the implementation of the Interim Measures, take practical measures to incorporate migrant workers who are employed in urban enterprises and establish labor relations into the basic old-age insurance system for urban enterprise employees in accordance with the unified provisions of the state. Before the implementation of the "Interim Measures", areas where migrant workers have been introduced to participate in the old-age insurance should pay close attention to adjusting relevant policies, realize the unification and standardization of the basic old-age insurance policies for employees of urban enterprises, and earnestly do a good job in migrant workers' participation in the old-age insurance for employees of urban enterprises.