The utility model discloses a photovoltaic and marsh gas power generation control system that is incorporated into power networks, including being incorporated into the power networks the controller to the net controller is connected with photovoltaic power generation mouth and marsh gas power generation mouth voltage sensor in the same term, generating line voltage sensor in the same term, device in the same term, energy storage controller, and the photovoltaic is connected on device output line in the same term with marsh gas power generation mouth voltage sensor in the same term, and its output is connected with electronic combined floodgate, and generating line voltage sensor connection in the same term is on the power transmission line, and the energy storage sensor is connected on the photovoltaic battery, and its output connects gradually electronic combined floodgate of photovoltaic and photovoltaic device the same period. The utility model discloses transmission in the same term, stable, reliable is realized carry the power transmission line through device in the same term on to electric energy that the controller that is incorporated into the power networks sent photovoltaic device and biogas power device device, adopts the sensor to gather voltage signal to controller in real time, realizes the synchronization with power transmission line voltage signal with after date monitoring voltage signal, starts closing switch, and simple structure is controlled, the price is hanged down to connections of being incorporated into the power networks.