The invention relates to the technical field of decoration equipment, and discloses a decoration guniting screeding device convenient to maintain. The device comprises a base, the outer side of the base is movably connected with a conical gear, the interior of the conical gear is movably connected with a screw, the outer side of the screw is movably connected with a support, one end of the supportis movably connected with a fixed block, the interior of the fixed block is movably connected with a first connecting shaft, the outer side of the first connecting shaft is movably connected with a first connecting rod, the interior of the first connecting rod is movably connected with a second connecting shaft, according to the decoration guniting screeding device convenient to maintain, throughconnection of a conical gear and a first gear, the problem that at present, building wall plastering commonly uses cement mortar manual screeding, and rapid work cannot be achieved is solved, the condition that the manual grinding work efficiency is low can be avoided, the guniting construction engineering quality is not affected, practicability is high, reliability is high, decoration cost is reduced, the decoration time is effectively shortened, raw materials of cement, sand and the like can be saved, and the construction efficiency is high.