The utility model relates to a wall switch with protection functions of preventing electric leakage, overload, short circuit, etc., which comprises a cover, a base, an action mechanism assembled on the base, a contact system and a wiring system, wherein the action mechanism is a link rod action mechanism controlled by a handle, the contact system is a single-break clapper type contact system and is arranged below the action mechanism, and the wiring system is in a screw pressing mode. The base is also provided with an electric leakage protection functional assembly, or an electric leakage and overload protection functional assembly, or an electric leakage and short circuit protection functional assembly, or an electric leakage and overload and short circuit protection functional assembly, or an overload and short circuit protection functional assembly, or an overload protection functional assembly, or a short circuit protection functional assembly. The wall switch is safe and reliable when the wall switch is matched with large load electric apparatus, such as air conditioners, refrigerators, etc. Because the action mechanism, the contact system and the wiring system of the switch has reasonable arrangement, the wall switch has convenient use, and also has practicality and good appearance.