The invention discloses a method, device and system for verifying the property right identity of an information receiving side. The method comprises the steps: transmitting a property right obtaining request to a gateway when there is business information to be transmitted to a user, so that the gateway queries a corresponding current property right change identification according to a user card identification; receiving the current property right change identification returned by the gateway; comparing the current property right change identification with a preset property right change identification, so as to verify the property right identity of the user; and carrying out the corresponding business processing according to a verification result of the property right identity of the user. According to the invention, a mobile number property right customer change field is added to a conventional number entity attribute, and is used for recording a property right customer change version. When a service provider needs to transmit important information to a customer, the service provider carries out the corresponding business processing according to the verification result of the field, and provides security guarantee for the user, thereby avoiding the leakage of important information of the customer and the tampering and stealing of the personal information.