The invention discloses an electric leakage warning and protection circuit which includes a zero-sequence transformer, a overcurrent sensor and a zero line electricity leakage sensor are sequentially arranged and connected with a first control module, the first control module is further connected with a control end of a first silicon controlled rectifier, the first silicon controlled rectifier and a tripping coil are serially connected with each other and are jointly arranged between an anode and a cathode of the power module, an electric leakage display circuit is provided with a second silicon controlled rectifier and a first light emitting diode, the second silicon controlled rectifier is serially connected with the first light emitting diode, and a control end of the second silicon controlled rectifier is connected with the second control module. The electricity leakage warning and protection circuit has advantages of implementing electricity leakage warning and automatic tripping protection, so that the safety is greatly improved.