The present invention relates to a security assessment system and method for an operating environment of a power mobile terminal. The system comprises a basic detection module, a vulnerability detection module, an application detection module and a security evaluation module. The system is capable of detecting whether there are vulnerabilities or risks in the configuration and the framework of a power mobile terminal and the installed application programs, recording the detected vulnerabilities or risks as dangerous points as the evaluation basis for evaluating the security situation of the electric power mobile terminal, and according to the evaluation results, sending out the reminder of upgrading or vulnerability checking and blocking the electric power mobile terminal from opening theapplication. According to the technical proposal provided by the invention, by analyzing the security of the running environment of the power terminal on the Android platform, and evaluating and weighting the dangerous points of each link according to the safety analysis, the running state of the electric power terminal can be monitored in real time and the abnormal points can be early-warned in time, and the safety of the running environment of the electric power mobile terminal is greatly enhanced.