The invention discloses an automobile energy comprehensive recycling system. The automobile energy comprehensive recycling system comprises an automobile engine tail gas exhaust pipe, a first-stage silencing transducer, a second-stage silencer and a heat exchanger, wherein the gas outlet end of the automobile engine tail gas exhaust pipe is connected with the tail gas inlet end of the first-stagesilencing transducer in a communicating manner, the tail gas discharge end of the first-stage silencing transducer communicates with the tail gas inlet end of the second-stage silencer through a transition pipe, and the tail gas discharge end of the second-stage silencer communicates with a smoke exhaust pipe. The automobile energy comprehensive recycling system is simple in structure, and on thepremise that the silencing effect is achieved, heat in the silencer can be absorbed in real time for being continuously supplied to the heat exchanger.