The invention discloses an automatic film sticking machine. The machine comprises an automatic feeding mechanism, a pre-positioning mechanism, a film sticking automatic stripping mechanism, a film sticking station conversion mechanism, an automatic film sticking mechanism and a finished product output mechanism; according to the automatic feeding mechanism, an element to be subject to film sticking is taken out and conveyed to the pre-positioning mechanism, the pre-positioning mechanism carries out position pre-adjustment on the element to be subject to film sticking, the element to be subject to film sticking and position pre-adjustment is placed on the film sticking station conversion mechanism, the automatic film sticking mechanism enables a sticking film stripped from the film sticking automatic stripping mechanism to be pasted and covered on the element to be subject to film sticking on the film sticking station conversion mechanism, and the element subject to film sticking is output through the finished product output mechanism for quality inspection. The automatic film sticking machine can be suitable for single-layer or multi-layer rapid effective film sticking, full-automatic feeding, cleaning, sticking film stripping, sticking film absorbing and film sticking are achieved, time and labor are saved, the automatic film sticking efficiency is improved, the film sticking yield is high, and the good application prospect is achieved.