The invention discloses a power control terminal establishing method based on an embedded system. The method comprises the following steps of 1) fusion analysis and general framework design; 2) designand realization of a fusion file management module; 3) design and realization of buffer memory management fusion, and design of buffer memory fusion; and 4) and research on a dynamic multi-granularity blocking mechanism based on an affair off period. According to the method, application of the embedded system in the power control field is combined, redundancy functions of an embedded database andthe embedded operating system are analyzed, and fusion of the embedded database and the embedded operating system is researched and designed.