The utility model provides an intermediate frequency electric stove insulation resistance detects control circuit, include: first chip, the second chip, the third AND gate, the fourth AND gate, the 5th chip, the six -core piece, first resistance, the vehicle charging control system further comprises a second resistor, third resistance, fourth resistance, the 5th resistance, the 6th resistance, the7th resistance, the 8th resistance, the 9th resistance, the tenth resistance, first electric capacity, a second capacitor, third electric capacity, fourth electric capacity, the 5th electric capacity, the 6th electric capacity, the 7th electric capacity, the 8th electric capacity, a first diode, a second diode, first opto -coupler, the second opto -coupler, the 9th electric capacity, the tenth electric capacity, the 11 resistance and reactor. Its advantage lies in controlling positive negative voltage and works respectively with certain cycle to positive and negative operating voltage's interval time can guarantee, reliably releases with the energy of guaranteeing alternating current reactor, prevents positive voltage and negative voltage short circuit, the circuit is simple, and the reliability is high, has guaranteed the reliability of the insulation resistance detection of coil.