The invention discloses a remote overtemperature alarm for a power cable head, and the remote overtemperature alarm comprises a signal collecting circuit, a signal judging circuit and an alarming communication circuit, wherein the signal collecting circuit collects a temperature signal from the junction point of the power cable head and the output of the signal collecting circuit is connected with the signal judging circuit; the output of the signal judging circuit is connected with the alarming communication circuit; and the alarming communication circuit is connected with a network distribution intelligent control center or the mobile phone of an electrician. The remote overtemperature alarm can be used for realizing on-line monitoring and intelligent alarming for temperature at the junction of the conducting wire of the power cable head; when the temperature at the junction of the outlet conducting wire of the running power cable head exceeds a specified value, an overtemperature signal is immediately transmitted to an emitting circuit to carry out remote alarming; an operator on duty obtains an alarming condition and reaches the field to handle the accident at once; the time of handling the failure of electrical equipment is shortened; the damage rate of the equipment is reduced; the power-supplying reliability is improved; and the enterprise benefit and the social benefitare increased.