Induction cooker desktop combination induction cooker is a new type of cooker in the kitchen appliance market. It breaks the heating principle of the traditional open fire cooking method using magnetic field induced current (also called eddy current). The induction cooker generates alternating magnetic field through the components of the electronic circuit board. When the bottom of the iron containing cooker is placed on the furnace surface, the cooker cuts the alternating magnetic line of force and generates alternating current (i.e. eddy current) on the metal part at the bottom of the cooker, The eddy current makes the iron atoms of the cooker move irregularly at high speed, and the atoms collide and rub with each other to generate heat energy (therefore, the heat source of the induction cooker cooking comes from the bottom of the cooker rather than the induction cooker itself, so the heat efficiency is nearly 1 times higher than that of all cookware), so that the appliance itself can heat at high speed, and is used to heat and cook food, so as to achieve the purpose of cooking. It has the advantages of fast temperature rise, high thermal efficiency, no open fire, no smoke, no harmful gas, and heat generation for the surrounding environment. Since the induction cooker is generated by eddy current generated by the directly induced magnetic field at the bottom of the pot, it should choose magnetically sensitive iron as the cooking utensil. Since iron has sufficient absorption of magnetic field and excellent shielding effect, it reduces a lot of magnetic radiation, Therefore, the iron pot is safer than any other cooking utensils. In addition, iron is a substance beneficial to human health, and also a necessary element that human body needs to ingest for a long time. It does not produce heat radiation, is compact, safe and beautiful, and can complete most of the cooking tasks of the family. Therefore, in some countries where induction cookers are popular, they are known as "the god of cooking" and "green stoves".