The invention discloses a thermocompression bonding device for a shoe sole reinforcing plate. The device comprises an upper pressing die, a lower pressing die and an electric heating plate fixedly arranged in the middle of the bottom surface of the upper pressing die. A plurality of groups of air outlet micropores are formed in a hot pressing groove in a communicating manner. The air outlet micropores are communicated with an air outlet pipe configured to penetrate through the lower right end of the lower pressing die. When the upper pressing die is pressed in the hot pressing groove in the upper surface of the upper pressing die, the pressed gas in the air outlet pipe can be quickly exhausted through the air outlet pipe. The phenomenon that a shoe sole in a shoe is influenced by gas extrusion is not easy to form, so that the processing quality is guaranteed. According to the invention, a ceramic heat conduction plate is fixedly arranged on the lower surface of an electric heating plate. The lower surface of the ceramic heat conduction plate is provided with a pattern printing layer. Patterns can be printed on the shoe sole while heating and hot pressing are conducted. Multiple functions are achieved. The function of printing the shoe sole when the shoe sole reinforcing plate is arranged on the shoe sole in a hot pressing mode is achieved. The manufacturing cost is saved. The machining procedure and the machining time are shortened. The efficiency is high, and the shoe sole is suitable for popularization.