1. Enterprises need to carry the following documents: 1. Copy of the ID card of the legal representative of the unit and affix the official seal; 2. Copy of the organization code certificate with official seal and original; 3. Copy and original of industrial and commercial business license (one copy each). Second, others need to be carried: 1. Official seal; 2. Employee Declaration Form; 3. Add two one-inch color photos of the insured and a copy of the ID card; 4. agricultural registered permanent residence personnel provide copies of agricultural registered permanent residence (copy the first page and my page); 5, new personnel at the same time to the USB flash drive. The employer can only declare and pay social insurance premiums after handling social insurance registration, and cannot pay them forward.