The invention provides a method for constructing a terminal credible platform in a cloud computing environment. The terminal credible platform comprises a bottom hardware layer, a middle operating system layer and a top application layer, and a credible chain is established from the bottom hardware layer to the top application layer. The application layer establishes an external credible chain with a credible network through a credible application program and is connected with a cloud computing server through the credible network. According to the method provided by the invention, a TPM credible computing module is not only transplanted into the bottom hardware layer, but also is transplanted into an Android system, and the credible technology is transplanted and integrated into the entire terminal credible platform system, thereby ensuring that the bottom hardware layer of the system can be started credibly and safely at first, then the credible transfer technology is applied to the transfer of the credible chain, and credible transfer from the bottom hardware layer to the operating system layer and to the application layer, and even to the access of the cloud computing server is achieved.