The invention discloses a wireless protection system for electric hot water equipment. The wireless protection system comprises a signal transmitting module and a signal receiving module. The signal transmitting module comprises an inflatable temperature switch and a code hopping signal transmitting circuit. A telescopic gas bag is arranged inside the inflatable temperature switch and filled with gases. A lower electrode plate and an upper electrode plate are sequentially arranged on the gas bag in parallel. The upper electrode plate is connected with a power source VCC. The lower electrode plate is connected with the code hopping signal transmitting circuit. When the temperature of water in the electric hot water equipment is increased, the gas bag expands with heat so as to drive the lower electrode plate to move upwards. When the temperature of the water reaches the alarm temperature, the gas bag expands to make the lower electrode plate make contact with the upper electrode plate, and the code hopping signal transmitting circuit is electrified to work and transmits a wireless code hopping control signal that a main power supply circuit of the electric hot water equipment is required to be switched off. The signal receiving module compares the wireless code hopping control signal with circulating hopping codes inside the signal receiving module after receiving the wireless code hopping control signal, and if codes of the wireless code hopping control signal and the circulating hopping codes are the same, the system is controlled to switch off a main power supply circuit power source.