We are a property security company. What if the company doesn't buy us social security?

Your so-called social security refers to urban workers' insurance, which is the so-called five insurances. That is, pension, unemployment, work injury, maternity and medical care. Beijing stipulates that units and individuals who sign labor contracts can pay insurance for employees from the month when they sign labor contracts. If a unit and an individual sign a labor service contract. Then, the unit may not insure employees, but generally it will insure employees who sign labor contracts with commercial insurance.

Also, after signing the labor contract, the unit will not give you insurance. Then you should sue him at the labor bureau and apply for arbitration. But in this case, maybe the company will fire you.