A resonance-type non-contact power supply system (10, 110) that transmits electric power by a non-contact resonance effect from a power-transmission-side resonance coil part (30, 35), which is connected to a high frequency power supply by a first coaxial cable, to a power-receiving-side resonance coil part (40, 45), which is connected to a load device by a second coaxial cable, the system comprising: a power-transmission-side shield part which is a conductor and covers the power-transmission-side resonance coil part (30, 35) except for an opening towards the power-receiving-side resonance coil part (40, 45), and which is electrically connected to a housing of the high frequency power supply by an outer conductor of the first coaxial cable; a power-receiving-side shield part which is a conductor and covers the power-receiving-side resonance coil part (40, 45) except for an opening towards the power-transmission-side resonance coil part (30, 35), and which is electrically connected to a housing of the load device by an outer conductor of the second coaxial cable, a plurality of flexible case connecting parts (12, 13a, 13b, 14a, 14b) configured to electrically connect the power-transmission-side shield part and the power-receiving-side shield part, wherein each of the power-transmission-side shield part and the power-receiving-side shield part are provided with a plane-formed shield front part (86a, 86b, 96a, 96b) which extends outwards a given length beyond the opening end, and, characterized in that the plurality of case connecting parts (12, 13a, 13b, 14a, 14b) is provided on both the power-receiving-side shield part and the power-transmission-side shield part, and when the primary resonance coil and the secondary resonance coil face each other, the plurality of flexible case connecting parts (12, 13a, 13b, 14a, 14b) is configured to be controlled between a horizontal and vertical position, and wherein, when charging is performed, said flexible case connecting parts (12, 13a, 13b, 14a, 14b) are controlled to become vertical if the corresponding plane formed front shield part is located right above or below, and are accommodated horizontally if the corresponding plane formed front shield part is not located right above or below. a power-transmission-side shield part which is a conductor and covers the power-transmission-side resonance coil part (30, 35) except for an opening towards the power-receiving-side resonance coil part (40, 45), and which is electrically connected to a housing of the high frequency power supply by an outer conductor of the first coaxial cable; a power-receiving-side shield part which is a conductor and covers the power-receiving-side resonance coil part (40, 45) except for an opening towards the power-transmission-side resonance coil part (30, 35), and which is electrically connected to a housing of the load device by an outer conductor of the second coaxial cable, a plurality of flexible case connecting parts (12, 13a, 13b, 14a, 14b) configured to electrically connect the power-transmission-side shield part and the power-receiving-side shield part, wherein each of the power-transmission-side shield part and the power-receiving-side shield part are provided with a plane-formed shield front part (86a, 86b, 96a, 96b) which extends outwards a given length beyond the opening end, and, characterized in that the plurality of case connecting parts (12, 13a, 13b, 14a, 14b) is provided on both the power-receiving-side shield part and the power-transmission-side shield part, and when the primary resonance coil and the secondary resonance coil face each other, the plurality of flexible case connecting parts (12, 13a, 13b, 14a, 14b) is configured to be controlled between a horizontal and vertical position, and wherein, when charging is performed, said flexible case connecting parts (12, 13a, 13b, 14a, 14b) are controlled to become vertical if the corresponding plane formed front shield part is located right above or below, and are accommodated horizontally if the corresponding plane formed front shield part is not located right above or below.