Induction heating is clean environmental heating process due to a non-contact heating process. A lot of researches work in development of a new material and design heating process. with COMSOL multiphysics software, the phenomena in induction heating process can be simulated and estimated. therefore, the effect of inductor's distance, and conductive plate muterial in induction heating process were also simulated. the result shown that the efficiency of induction heating influenced by the width's variations and conductive material.