A non-contact charging device comprising: a high frequency power source, a transmission side coil receiving supply of high frequency electric power from said high frequency power source, a reception side coil arranged apart from said transmission side coil in a non-contact manner, receiving electric power from the transmission side coil through magnetic field resonance between said transmission side coil and reception side coil, a rectifier configured to rectify electric power from said reception side coil, a charger that is connected to said rectifier and includes a switching element, the charger being configured to boost the electric power rectified by said rectifier, and a secondary battery connected to said charger, said charging device being characterized by a stop control unit configured for stopping said high frequency power source before said charger is stopped when charging is to be stopped, wherein said stop control unit includes a primary side control unit configured for activating and stopping said high frequency power source, and a secondary side control unit (26, 27) configured for activating and stopping said charger, said primary side control unit and said secondary side control unit (26, 27) cooperate with each other to stop said high frequency power source before said charger is stopped, and wherein, when charging is to be stopped, said secondary side control unit (26, 27) notifies said primary side control unit that charging is to be stopped, and stops said charger at an elapse of a predetermined delay time, said primary side control unit stops said high frequency power source when receiving notification of stopping charging from said secondary side control unit (26, 27). a high frequency power source, a transmission side coil receiving supply of high frequency electric power from said high frequency power source, a reception side coil arranged apart from said transmission side coil in a non-contact manner, receiving electric power from the transmission side coil through magnetic field resonance between said transmission side coil and reception side coil, a rectifier configured to rectify electric power from said reception side coil, a charger that is connected to said rectifier and includes a switching element, the charger being configured to boost the electric power rectified by said rectifier, and a secondary battery connected to said charger, said charging device being characterized by a stop control unit configured for stopping said high frequency power source before said charger is stopped when charging is to be stopped, wherein said stop control unit includes a primary side control unit configured for activating and stopping said high frequency power source, and a secondary side control unit (26, 27) configured for activating and stopping said charger, said primary side control unit and said secondary side control unit (26, 27) cooperate with each other to stop said high frequency power source before said charger is stopped, and wherein, when charging is to be stopped, said secondary side control unit (26, 27) notifies said primary side control unit that charging is to be stopped, and stops said charger at an elapse of a predetermined delay time, said primary side control unit stops said high frequency power source when receiving notification of stopping charging from said secondary side control unit (26, 27).