Method for sharing risk customer information between banks, storage medium and electronic equipment

The invention provides a method for sharing risk customer information between banks. The method comprises the following steps: establishing an information sharing block chain between banks; each bank background server regularly uploads ciphertext data of the risk customer information to a corresponding bank node of the information sharing block chain; when one bank inquires the risk customer information from other banks, the bank background server sends an inquiry request of ciphertext data at least carrying the identity information of the risk customer to the information sharing block chain, and other bank background servers inquire the own risk customer information according to the inquiry request; the plaintext query result and the proof information are encrypted and uploaded to the information sharing block chain; and the bank background server sending the query request obtains the encrypted plaintext query result and the proof information from the information sharing block chain, and verifies the correct