The invention discloses a method for verifying the integrity of a cloud computing platform. The method includes the steps that (1) a client terminal carries out integrity measurement on software and/or hardware operated on the client terminal through a TPM; (2) when the client terminal starts an application related to the safety, information containing the measurement value obtained in the step (1) is sent to a remote terminal to request the remote terminal for verifying the integrity of the platform of the client terminal; (3) responding to the received verification request coming from the client terminal, the remote terminal establishes a hardware isolation environment based on the TXT, the received measurement value is decrypted and analyzed in the hardware isolation environment to obtain a verification result, and the verification result is sent to the client terminal; (4) the verification result received from the remote terminal is decrypted and analyzed through the client terminal to determine whether the platform of the current client terminal has the high integrity or not.