1. The base of social insurance and housing fund is based the employee's average monthly salary last year;2. If the average monthly salary exceeds 300% of the average monthly salary of the city, the base shall be verified by 300% of the average monthly salary of the city;3. If the average monthly salary is 60% lower than the average monthly salary of the city, the base shall be verified by 60% of the average monthly salary of the city;4. For the employee who join the work or change the unit for the first time, the base shall be verified according to the actual salary income of the first month.