The invention discloses a minitype intelligent bidirectional self-adaptation grid-connected photovoltaic power generation system, which comprises a photovoltaic battery board matrix and a confluence box, wherein the output end of the output end of the confluence box is connected with a storage battery controller, an inversion/rectification integrated converter and a direct-current load control switch; the storage battery controller and the direct-current load control switch are connected with a storage battery set and a local direct-current load; the output end of a converter is connected with an alternating-current load control switch and an grid-connected controller; the output end of the alternating-current load control switch is connected with a local alternating-current load; each output end is connected with a conversion module; a voltage and current sampling conversion module is connected with a signal modulation circuit; the output end of a signal modulation circuit is connected with a DSP (digital signal processor); and each control end is connected with a PWM (pulse width modulation) interface. A control method of the minitype intelligent bidirectional self-adaptation grid-connected photovoltaic power generation system comprises parameter preparation control, power generation and power supply control. The system and the method have the advantages of good reliability, convenience in installation, operation and maintenance, high stability, strong adaptivity and high solar energy utilization ratio.