The present application discloses a method and a device for customer resource acquisition, a terminal device and a storage medium. The method for customer resource acquisition includes: acquiring user's access request which includes a session identifier, user information and a progress identifier; determining whether the progress identifier is a completed identifier; determining whether the user's access request is a first access request corresponding to the session identifier; if the progress identifier is a completed identifier and the user's access request is not a first access request, determining a corresponding administration process based on the session identifier; storing the user information in an address space corresponding to the administration process, generating a first resource data based on all user information in the address space, uploading the first resource data to server, and destroying the administration process. The method for customer resource acquisition is highly efficient with good database performance.