Social security should be paid at least 15 years.

Early retirement or resignation due to illness or non-work-related disability must meet the following conditions: (1) The cumulative payment period of basic old-age insurance premium shall not be less than 15 (including deemed payment period); (two) by the municipal labor ability appraisal committee identified as completely incapacitated; (3) Men over 50 years old and women over 45 years old can apply for retirement, while those under this age can only apply for resignation.

Further reading: How to buy insurance, which is good, and teach you how to avoid these "pits" of insurance.