However, the state clearly stipulates that the unit shall pay social insurance for the workers during the probation period. According to the Labor Contract Law, the probation period is included in the term of the labor contract. Because the probation period belongs to the scope of labor contract, employees have the right to enjoy all kinds of social insurance, that is, endowment insurance, work injury insurance, medical insurance and so on.
Further reading: How to buy insurance, which is good, and teach you how to avoid these "pits" of insurance.