What about the social security paid by the previous unit?

1. If you used to have a social security account in the original company and the original place of insurance was the household registration, you can apply for intermittent payment of social security. The social security payment will not affect your accumulated payment period.

2. If you used to have a social security account in the original unit and the original place of insurance was not the household registration, you can't apply for intermittent payment of social security, and you can only renew your social security through the re-employment unit, which will not affect your accumulated payment period.

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