The invention discloses a cooking fume exhaust method for an energy-saving stove. A fire hole cooking fume cover, a pot cooking fume cover and a dish cooking fume cover are arranged over the stove, and the pot cooking fume cover is arranged on one side of an operator for the fire hole cooking fume cover. An induction actuator, an exhaust fan and a plurality of pot position sensors are arranged, wherein the exhaust fan and the pot position sensors are electrically connected with the induction actuator, when the stove is used, the pot position sensors detect pot positions and transmit signals to the induction actuator, and the induction actuator turns on the exhaust fan and a corresponding suction opening and turns down other suction openings. The suction openings of the cooking fume cover and an exhaust channel track cooking fume generation sources in real time and prevent cooking fume from overflowing, the exhaust cooking fume is recycled as fuel, the energy sources are greatly saved, the energy source consumption is remarkably reduced, and meanwhile the cooking fume purification rate is obviously increased. According to the method, a pot can be recognized and tracked in a pertinence manner, multi-position tracking can be achieved with the small-power exhaust fan, cooking oil is effectively exhausted in an orientation manner, a better cooking fume exhausting effect is guaranteed, the energy consumption is greatly reduced, and the energy sources are saved.