Sanitary and environment-friendly electronic atomizer convenient to assemble automatically

The sanitary and environment-friendly electronic atomizer convenient to assemble automatically comprises a main machine shell, a main body upper cover, an oil cup assembly, an electric control assembly and a main body bottom cover are sequentially arranged on the main machine shell in a sleeved mode, and a silica gel suction nozzle communicated with the oil cup assembly is arranged on the main body upper cover in a sleeved mode. A plurality of longitudinal positioning grooves are formed in the bottom of the silica gel suction nozzle, a plurality of longitudinal positioning plates connected with the longitudinal positioning grooves in a clamped mode are arranged in the main body upper cover, a transverse annular groove is formed in the silica gel suction nozzle, a transverse annular protrusion is arranged on the main body upper cover, and the transverse annular protrusion is connected to the transverse annular groove in a clamped mode. According to the sanitary and environment-friendly electronic atomizer conv