The invention relates to a full vehicle system of hybrid vehicles, a multi-energy control system of the full vehicle system, and a corresponding multi-energy control method. The full vehicle system of hybrid vehicles comprises a multi-energy controller system, a motor main body system, an energy storage main body and control system, an engine and a full-vehicle electric-mechanical system. Based on the control system, the invention discloses an energy control method including special processing strategy and algorithm for multi-energy information, energy control of full hybrid vehicle under power-assisted torsional moment, energy control of full hybrid vehicle under energy recovery mode, temperature control strategy of an energy storage unit, and automatic start/stop of the engine. A high-voltage battery of the energy storage unit configured in the full hybrid vehicle has higher work efficiency and higher service life when subjected to the control scheme of the invention, and the full vehicle of the invention meets various index such as the design economy, power performance and emission performance.