The invention provides a switch automated assembling device and relates to the switch automated assembly technology. The switch automated assembling device comprises a body conveying device, a terminal conveying device, a shrapnel conveying device, a body and terminal assembling unit, a shrapnel assembling unit, a glue filling unit, a programmable logic controller (PLC) die set and a human-computer interface, wherein the body conveying device, the terminal conveying device, the shrapnel conveying device, the body and terminal assembling unit, the shrapnel assembling unit, the glue filling unit, the PLC die set and the human-computer interface are all arranged on a machine. The switch automated assembling device is characterized in that firstly, terminals are assembled into a body through the body and terminal assembling unit, then shrapnel is assembled on the body assembled with the terminals through the shrapnel assembling unit, and then an assembled switch is obtained, and lastly, glue is filled into the terminals and the shrapnel of the assembled switch through the glue filling unit. Therefore, the problem of automated assembling a switch body, the terminals and the shrapnel into a switch product is solved, automated assembling of the switch body, the terminals and the shrapnel on an assembling device is achieved, uniformity and reliability of the switch product are improved, assembling efficiency is high, and assembling cost is low. Meanwhile, labor capacity of a worker is small, labor intensity is less, and physical health is benefited.