An automatic connector assembling device is provided. The invention provides an automatic connector production device and belongs to the field of connector assembly. The automatic connector assemblingdevice comprises a working cabinet and a working surface, wherein the working surface is installed on the top of the working cabinet by bolts through a cylindrical shock-absorbing rod and a shock-absorbing rubber strip; a first pushing module, a lower rubber core module, a pin module, a control module, a first pressurizing module, a first bending module, a second bending module, a second pushingmodule, a second pressurizing module, a receiving module, a third bending module, a cutter module and a cutting and feeding module are successively arranged in an assembly line on the working surface.Compared with the prior art, the automatic connector assembling device is more stable and reliable, has in high production efficiency, and easy to replace in device structure, and avoids damage caused by vibration to equipment components such as support feet, and achieves low vibration noise and a long service life.