How to transfer rural insurance to social security in Shanghai? How long can my mother's 7-year rural insurance be transferred to social security?

Apply for urban insurance at the agricultural insurance window of the township community affairs acceptance center where the household registration is located. There is no fixed ratio of rural insurance to urban insurance. That depends on how much rural insurance your mother paid each year. At most 1 year is converted into 1 year, and at least 1 year is converted into urban insurance less than 1 month. After the transfer procedure is completed, consult the county social security center of the household registration, and the computer program of the social security department will automatically calculate it.