The invention relates to a community express service blockchain security and protection system and method. The system comprises a logistics platform, a community access control management system, a courier terminal, a community access control operating system and a community access controller; a logistics station server communicates with the community access control management system of a community corresponding to a consignee address of an express logistics number, and sends the consignee address and addressee information to an access control management communication module of the community access control management system; a logistics station assigns a courier to deliver the express and generates a group of keys; and when the courier arrives at the doorway of the corresponding community,the courier enters the keys, the key information is matched, and entry is permitted when the matching is successful. By adoption of the community express service blockchain security and protection system and method provided by the invention, the problem that the courier enters and leaves the community quickly and efficiently is solved. By adoption of the method provided by the invention, the quick and efficient entry and exit of the courier in the community can be managed, thereby improving the efficiency while ensuring the security of the community.