The utility model provides a heating bar with adjustable terminal, belongs to heating device's design and manufacture technical field. Set up the heating bar body into two parts, have plug portion at the rear portion of body, have the socket part in the front portion of body. Have the electrode jack in thermal -insulated sealed lid, have metal shrapnel in the electrode jack. The utility model discloses an application method is with in the electrode plug insert the plug electrode jack on the plug portion, can by the intercommunication of the metal shrapnel in jack power. Its characteristics are according to the site work actual conditions, the depth of inter fit of electrode on the regulation plug for the heating part keeps big distance with the terminal, can make the terminal part receive the heat little like this, makes the terminal nut be difficult for by the oxidation, and the line skin is melted. And the service life of the generator is extended. And has the advantages of simple structure, reasonable design. Show the effect ideal through the experiment. The installation is convenient very much with the maintenance, is applicable to the work down of various ambient condition. The problem of the existing equipment existence is solved.