The invention discloses a treatment mechanism of an engine cylinder. The treatment mechanism comprises a
chassis, an angle adjusting unit, a clamping unit, a height adjusting unit, a boring
power unit, an adjustable boring cutter unit and a heat
treatment unit; the clamping unit is mounted at the top of the
chassis through the angle adjusting unit; four mounting plates are arranged on the side surface of the
chassis at equal angles; the boring
power unit is mounted on the mounting plate on the left side through the height adjusting unit; the adjustable boring cutter unit is mounted at the bottom of the boring
power unit; the heat
treatment unit is mounted on the mounting plate on the back side; and the heat
treatment unit comprises a heat treatment equipment box, a baffle plate, an L-shaped door plate, equipment box legs, an electric push rod, a support rod, an end rod, a through hole, a door plate shaft, a push-pull block, a hinge support, a
heat conducting circular plate, a circularblind groove and an
electric heating wire. The treatment mechanism can continuously perform the production steps of the engine cylinder, improves the production continuity, effectively improves the production efficiency, reduces the manual participation, and reduces the labor cost.