The invention provides a manipulator convenient to maintain and used for LED car lamp machining. The manipulator convenient to maintain and used for LED car lamp machining comprises a moving frame, a power motor mechanism, a first electric telescopic rod mechanism, a connecting block, a second electric telescopic rod mechanism, a rotatable and replaceable adsorption seat structure, a fixable and rotatable protective seat structure, a fixable and supported rotary frame structure, a liftable protective frame structure, a suction fan and a connecting hose, a horizontal ruler, a threaded rod, a rotary rod, an antiskid plate and universal moving wheels. According to the manipulator convenient to maintain and used for LED car lamp machining, through arrangement of a connecting seat, a sealing gasket, an inclined T-shaped adsorption seat, an air suction pipe, a silica gel ring and the second electric telescopic rod mechanism, threaded connection of the connecting seat and the inclined T-shaped adsorption seat in the using process is facilitated, the inclined T-shaped adsorption seat is rotated in the using process, and the inclined T-shaped adsorption seat is disassembled; and the inclined T-shaped adsorption seat can be conveniently replaced in the using process, and maintenance and replacement work can be conveniently carried out in the working process.