A service processing method, which is applied to a terminal side, comprising: transmitting (101A, 101B) a service execution request to a service server; receiving (102A, 104B) a verification notification carrying signature information from the service server; verifying (103A, 105B) currently inputted biometric feature information through a Trusted Execution Environment system, and responsive to determining that the biometric feature information is consistent with pre-stored reference biometric feature information, performing a signature processing on the signature information, by using a pre-stored service private key, obtaining first to-be-checked signature information; and, transmitting (104A, 106B) a verification request carrying the first to-be-checked signature information to the service server; wherein the method further comprises: generating a pair of a device private key and a device public key through the TEE system, storing the device private key into the TEE system, transmitting the device public key and a device ID of the terminal to a device-public-key management server, such that the device-public-key management server stores the device ID corresponding to the device public key; generating a pair of an application private key and an application public key through the TEE system, storing the application private key into the TEE system, performing a signature processing on the application public key, by using the device private key, and obtaining second to-be-checked signature information; transmitting a storing request carrying the device ID, the application public key and the second to-be-checked signature information to the service server. transmitting (101A, 101B) a service execution request to a service server; receiving (102A, 104B) a verification notification carrying signature information from the service server; verifying (103A, 105B) currently inputted biometric feature information through a Trusted Execution Environment system, and responsive to determining that the biometric feature information is consistent with pre-stored reference biometric feature information, performing a signature processing on the signature information, by using a pre-stored service private key, obtaining first to-be-checked signature information; and, transmitting (104A, 106B) a verification request carrying the first to-be-checked signature information to the service server; wherein the method further comprises: generating a pair of a device private key and a device public key through the TEE system, storing the device private key into the TEE system, transmitting the device public key and a device ID of the terminal to a device-public-key management server, such that the device-public-key management server stores the device ID corresponding to the device public key; generating a pair of an application private key and an application public key through the TEE system, storing the application private key into the TEE system, performing a signature processing on the application public key, by using the device private key, and obtaining second to-be-checked signature information; transmitting a storing request carrying the device ID, the application public key and the second to-be-checked signature information to the service server. generating a pair of a device private key and a device public key through the TEE system, storing the device private key into the TEE system, transmitting the device public key and a device ID of the terminal to a device-public-key management server, such that the device-public-key management server stores the device ID corresponding to the device public key; generating a pair of an application private key and an application public key through the TEE system, storing the application private key into the TEE system, performing a signature processing on the application public key, by using the device private key, and obtaining second to-be-checked signature information; transmitting a storing request carrying the device ID, the application public key and the second to-be-checked signature information to the service server.