There are three differences between the two, as follows: 1. The nature of payment is different: it is mandatory for the employer to pay pension insurance. As long as you work in the employer, the employer must pay, otherwise you will be punished. Individual contributions to pension insurance are voluntary. If you feel social security is more important, you can pay monthly, you can pay it yourself, or you can choose not to pay it. 2. Different qualifications: The prerequisite for the employer to pay pension insurance is that you have a normal job and an employer, but there are no restrictions on the account. Whether local or not, it can be handed over to social security personnel. Individual contributory pension insurance does not require employment, but it is usually a local account. 3. Differences in payment objects and payment proportions Pension insurance premiums paid by units shall be paid by both units and individuals simultaneously. The contribution rate of this unit is much higher than that of individuals. However, if the unit only pays its own principal, the rate will be much higher. Most importantly, only 40% of this is included in personal accounts, while 60% is included in social security accounts. If there is no perfect death, only the money in the personal account can be inherited. Comparing the employer's pension insurance with that of individuals, we found that the employer paid a large amount of pension expenses. Because most of it is paid by the unit, the individual share is very low.