The invention relates to a supporting technology for accessing new energies into a power system and particularly relates to a control method of a self-adaptive mobile microgrid energy interaction system. The system used by the method comprises an energy interaction subsystem and a controller, wherein the energy interaction subsystem is controlled by the controller. The method adopts two-way power control and comprises the following steps of (1) the controller collects combined power-generation actual power output of wind power, photovoltaic energy and an energy-storage system and combined power-generation actual power output of the wind power and the photovoltaic energy on an upper-layer control system; (2) the power is corrected; (3) the power of the hybrid energy storage system is distributed. The control method has the advantages that the defects of the existing equipment and control technology are overcome, the changes of voltage, current, power and power quality are dynamically adapted according to different states and operating modes of a source, a grid and a load, and the operating control modes are automatically changed in a self-adaptive manner by utilizing unified information and calculation nodes, so that sustainable-safe-stable power supply with high reliability is realized.