Identity verification method, device and system

The invention relates to an identity verification method, device and system. The method, the device and the system are used for simplifying identity verification operation. The method comprises the steps of receiving an identity verification instruction from a server; determining information of local hardware and first pre-stored mobile phone number information in response to the identity verification instruction, wherein the first pre-stored mobile phone number information is locally pre-stored mobile phone number information; taking the information of the local hardware and the first pre-stored mobile phone number information as to-be-verified identity information and sending the information to the server; and receiving a verification result generated by the server based on the to-be-verified identity information. According to the technical scheme of the method, the device and the system, the identity verification operation can be simplified.