The invention discloses a communication engineering project life cycle credible management method based on an intelligent mobile device cloud service, which specifically comprises the following steps:starting a machine, encrypting each device address of a mobile phone by using a Gost algorithm to obtain a digital fingerprint, and comparing the digital fingerprint in a server to carry out hardwareintegrity verification; performing sequencing according to the out-of-order device sequence, and performing a Gost algorithm again to obtain mobile device identity information; taking the identity information of the intelligent mobile equipment as a secret key, encrypting the user identity information and the password by adopting a secret key type Gist algorithm to obtain comprehensive identity information, and comparing the identity information in the server to carry out identity authentication; and transmitting the data, and encrypting the user identity information, the project number and the transmission content by using an AES reversible encryption algorithm in the whole process by taking the comprehensive identity information as a secret key in the data transmission process. According to the technical scheme, in the communication engineering project life cycle process, the user and the hardware assembly can be verified, the accuracy of the sent information is guaranteed, the hardware assembly is not changed in any mode, and the credibility of the whole system is improved.