Beijing has the lowest social security.

The minimum payment standard of social security in Beijing varies according to different types of insurance. Details are as follows:

1. Endowment insurance: the minimum payment base is 40% of the average monthly salary of employees in this city, with a minimum of 2,835 yuan.

2. Unemployment insurance: the minimum payment base is 40% of the average monthly salary of employees in this city, with a minimum of 2,835 yuan.

3. Work-related injury insurance: the minimum payment base is 60% of the average monthly salary of employees in this city, with a minimum of 4,252 yuan.

4. Medical insurance: the minimum payment base is 60% of the average monthly salary of employees in this city, with a minimum of 4,252 yuan.