The present invention provides a pyrolysis furnace with new type heat supply and a method of high temperature cracking using the same. The present invention employs top burners and bottom burners combined heat supply; the inlet of crossover section is connected from middle-upper portion of side wall of radiant section wall; and the present invention has the feature of uniform heat supply, high effectiveness, flexible and simple operation and control, and small investment, it is suitable for cracking reaction of hydrocarbons feedstock.