The utility model provides an isolated electric water heater of water and electricity belongs to the electric water heater field, which comprises an outer shell, be equipped with the water tank in the shell, be equipped with the heater in the water tank, be equipped with power module in the shell, power module supplies power for the heater, the heater includes oil tank and solenoid, be fixed with the iron core through insulation?support in the oil tank, solenoid passes through the iron core and forms vortex production of heat, solenoid is connected to power module, the oil tank is connected with heat dissipation pipeline through the circulating pump, the circulating pump is connected to power module, power module is equipped with the controller to power supply regulation, heat dissipation pipeline installs in the water tank, can effectually carry out the water and electricity keeps apart.