Abstract: A pusher for a planer contains: a body, a planer, a movable control portion, and a push member. The planer includes a cutter, a drive shaft, a transmission portion, a horizontal rod, a reduction wheel, and a threaded portion. An upper belt is fitted on the lower belt, a wheel rod and an auxiliary rod. The wheel rod includes a second receiving portion, a guiding portion, and a pushing wheel. The guiding portion has a transmitting belt fitted on an actuation rod. The actuation rod has a driving portion and another pushing wheel. The auxiliary rod is supported on an auxiliary abutting block inserted onto a positioning rod, and a returning spring is fitted on the positioning rod. The movable control portion includes a rotary shaft and a movable pedestal. The press post has two pressing wheels, and a control wheel is biased against the transmitting belt.