When did social security come into effect?

From 65438 to 0997, China began to implement a new system combining social pooling with individual accounts.

Social insurance is compulsory insurance required by the state. The state develops social insurance, establishes a social insurance system and a social insurance fund, so that workers can get help and enjoy insurance benefits in cases of old age, illness, work injury, unemployment and maternity. China's "Labor Law" and "Social Insurance Law" clearly stipulate that it is the legal obligation of the employer to pay social insurance for workers, which is obviously compulsory by the state, and the employer shall not refuse to undertake this legal obligation under any excuse or reason.

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