The invention discloses a sintering end point control method, belongs to the technical field of sintering process control, and particularly relates to a method for automatically adjusting aperture ofair bellows and a main shaft draught fan and controlling the sintering end point in the reasonable range on the basis of the main suction waste gas temperature, the temperature changing tendency, thesintering end point and the sintering temperature increasing point position. By implementation of the method, air bellows and a main shaft automatically control and reasonably adjust the sintering endpoint position, the situations of underburning and overburning are prevented, the sintering return mine rate is reduced, the sinter quality is improved, and the sintering production process is automatically controlled.