Abstract: The requirements for the billet induction heating process and equipment by the extrusion process of the pipe hot extrusion unit and the composition, main performance and structure characteristics of the vertical induction heating furnace are introduced. The billet induction heating process, billet temperature distribution features and control method are given in detail. It is pointed out that the process operation control and supervision must be performed in four aspects, which are the daily maintenance of the induction heating furnace, the operation regulating measures during billets heating, the set value control of the heating process parameters and the ratio of the production cycle to the energy consumption, so as to ensure the billet heating quality to be stabilized and make the repeatability of temperature distribution to be maintained.