The invention discloses an electronic product plastic processing tail gas treatment device. The device comprises a base board, wherein a fixing block is fixed to the outer wall of the bottom of the base board through a bolt, an exhaust fan is fixed to the outer wall of the bottom of the fixing block through a bolt, a dust filtering net is fixed to the outer wall of one side of the exhaust fan through a bolt, a first treatment box is fixed to the outer wall of the top of the base board through a bolt, a second treatment box is fixed to the outer wall of the top of the first treatment box through a bolt, first through holes are formed in the outer walls of certain sides of the first treatment box and the second treatment box respectively, air pressure sensors are fixed into the first throughholes through bolts respectively, and a second connecting pipe is inserted into the outer wall of the top of the first treatment box. According to the device, large-particle matters in tail gas are filtered and collected, so that the phenomena of device blocking and environmental pollution are avoided, the filtering capability and environment-friendly performance of the device are improved, an organic solvent and water vapor are separated through difference of coagulation points, and the separation capability of the device is improved.