The utility model provides a cleaning equipment of engine cylinder lid, including propulsion bolt, locating ear board, positioning bolt pushes up tight backup pad and rotating turret, the cylinder capbracket just slides through inboard support of its two bottoms sliders and two that it is slided to peg graft supports in the top of rotating turret corresponding of slide rails, and positioning boltpasses the central threaded hole's of the location boss of jack and the screw locking rotating turret intermediate position of locating ear board center department inside, and then with cylinder capbracket and rotating turret locking positioning together, the top of supporting in cylinder cap bracket bottom plate is placed to the engine cylinder lid to it supports between the curb plate to be located cylinder cap pinch -off blades and cylinder cap carrier frame rear end. The utility model discloses the setting of slide rails is supported in two outsides, and through supporting slide rails intwo outsides, the cylinder cap bracket can be directly slides and goes out and support the top of placing two outsides in and supporting slide rails from the box two inside inboard slide rails that support, and the operation is loaded and unloaded to convenient the lid the engine cylinder on the cylinder cap bracket.