The invention relates to the technical field of new energy facilities, and discloses a new energy electric vehicle charging device adjustable in angle after installation. The device comprises a base,two mounting bolts symmetrically arranged left and right are in threaded connection with the top of the base, and a plurality of combining holes formed in the inner sides of the mounting bolts are formed in the top of the base; a bearing block on the inner sides of the combining holes is fixedly connected to the top of the base; the inner surface of the side, close to the bearing block, of each combining hole is provided with a connecting hole. According to the new energy electric vehicle charging device adjustable in angle after installation, the rotation angle of a charging station is adjusted and selected by arranging the bearing block, a tray and supporting rods; the angle is quickly fixed and adjusted by arranging limiting springs, combining springs, a positioning hole and a limitingblock, so that great convenience is brought to workers to repair and maintain the charging station, and then the effect of conveniently improving the repair and maintenance efficiency of the workers.