An electric pot , comprising: a supporter including a first power module (PM1) including first to fourth connection terminals (CP1, CP2, CP, CP4) at an upper end of the supporter and configured to receive electric power from a power supply ; a pot main body including a second power module (PM2) including fifth to seventh connection terminals (CP5, CP6, CP7) and configured to receive electric power from the first power module (PM1) through the fifth connection terminal (CP5) electrically connected with the first connection terminal (CP1), and a heater driven to give off heat through an electric connection with the third and fourth connection terminals (CP3, CP4) and detachably coupled to the upper end of the supporter ; and a controller driven by receiving electric power from the pot main body , wherein the supporter includes a relay part (RL) configured to switch over a connection between the power supply and the third connection terminal (CP3) and connected to the second connection terminal (CP2) electrically connected with the sixth connection terminal (CP6), and a converter configured to receive and rectify alternating current power from the power supply , wherein the converter includes a buck converter configured to convert a magnitude of a voltage of the rectified alternating current power, and a first voltage regulator configured to control the magnitude of the voltage converted by the buck converter to a predetermined first voltage (V1), and wherein the first voltage regulator and the seventh connection terminal (CP7) electrically connected with the fourth connection terminal (CP4) are commonly connected to a first ground (G1). a supporter including a first power module (PM1) including first to fourth connection terminals (CP1, CP2, CP, CP4) at an upper end of the supporter and configured to receive electric power from a power supply ; a pot main body including a second power module (PM2) including fifth to seventh connection terminals (CP5, CP6, CP7) and configured to receive electric power from the first power module (PM1) through the fifth connection terminal (CP5) electrically connected with the first connection terminal (CP1), and a heater driven to give off heat through an electric connection with the third and fourth connection terminals (CP3, CP4) and detachably coupled to the upper end of the supporter ; and a controller driven by receiving electric power from the pot main body , wherein the supporter includes a relay part (RL) configured to switch over a connection between the power supply and the third connection terminal (CP3) and connected to the second connection terminal (CP2) electrically connected with the sixth connection terminal (CP6), and a converter configured to receive and rectify alternating current power from the power supply , wherein the converter includes a buck converter configured to convert a magnitude of a voltage of the rectified alternating current power, and a first voltage regulator configured to control the magnitude of the voltage converted by the buck converter to a predetermined first voltage (V1), and wherein the first voltage regulator and the seventh connection terminal (CP7) electrically connected with the fourth connection terminal (CP4) are commonly connected to a first ground (G1). <EOS>