The invention relates to a method for realizing frying, toasting, stir-frying, steaming, boiling and cooking on the same electric pan and a multi-purpose electric pan. To solve the problem that the current electric pan cannot be used for barbecuing, the electric pan comprises a barrel-shaped base with a heat insulation pad at an upper opening, wherein the heat insulation pad is matched with a barrel-shaped shell; a heating disk bottomed with a plurality of open annular electrothermal pipes is upwards arranged on the barrel-shaped shell; a plurality of side-by-side base brackets are fixedly arranged on the inner bottom surface of the barrel-shaped base in an upward way; the tops of the base brackets downwards extend through screw caps and the heating disk to penetrate through vertical through holes in the bottom surface of the barrel-shaped shell and then be fixed with screw rods in vertical through holes of the heat insulation pad; a metal or non-metal frying disk capable of being taken freely is arranged on the heating disk to fry food; the round area in the middle of the frying disk is higher, and the peripheral annular area is lower; oil leaking holes are circumferentially distributed at intervals; a toasting rack capable of being taken freely is arranged on the frying disk to toast food; an oil catch cup is arranged below a vertical oil discharging hole in the lower surface of the periphery of the heat insulation pad or on one side of the barrel-shaped base; a stir-frying pan capable of being accessed freely is arranged on the heating disk to fry or steam food. According to the method, one pan has the advantages of steaming, boiling, frying, toasting and stir-frying.