The invention provides an automatic battery tail glue pasting and corner pressing machine which comprises a rotating disc mechanism, a feeding mechanism, a tail glue pasting mechanism, a bottom glue smoothing mechanism, a glue paper pressing mechanism, a horizontal rotating mechanism, a corner folding mechanism, a corner pressing mechanism and a discharging mechanism. A plurality of fixing clamps are arranged on the periphery of the rotating disc mechanism; The feeding mechanism, the tail glue pasting mechanism, the bottom glue smoothing mechanism, the glue paper pressing mechanism, the horizontal rotating mechanism, the corner folding mechanism, the corner pressing mechanism and the discharging mechanism are sequentially arranged on the periphery of the rotating disc mechanism and correspond to the fixing clamps, the tail glue pasting mechanism is used for pasting gummed paper to the upper surface of a battery, and the bottom glue smoothing mechanism is used for wrapping the gummed paper on the battery; the glue paper pressingmechanism is used for flattening the glue tape on the battery. The automatic battery tail glue pasting and corner pressing machine has the advantages that high automation of equipment can be realized, intermediate material transfer procedures are reduced, and the processing precision and the production efficiency are improved.