The utility model relates to a turnover type vacuum attaching machine for liquid crystal touch panels, which comprises a base, an outer support, a working platform, a human-machine interaction window and a control panel, an attaching mechanism is arranged in the base, and comprises the working platform, a vacuum case which can carry out vacuum attaching operation is mounted on the working platform, and the vacuum attaching machine is characterized in that a turnover back panel support is arranged on one side of the vacuum case and is hinged on a turnover back panel through a rotary shaft. The turnover type attaching mode of the utility model shortens the motion time, and furthermore, because of the double-sided vacuum case mode, the efficiency is higher. Since the utility model adopts modes such as vacuum suction, mechanical positioning and pneumatic attaching under the vacuum environment, the attaching precision is ensured, the dependence on operators is decreased, and the utility model solves the intractable problems of the prior art, such as inaccurate positioning, low yield, air bubbles, halos, deformity, low attaching precision and low efficiency.