The present invention relates to a high frequency therapeutic apparatus for treating multi-joints and, more specifically, to a high frequency therapeutic apparatus which can: maximize therapeutic effects by improving tightness to fit with a curved body part like a multi-joint; and efficiently perform high frequency therapy by generating high frequency corresponding to resonance frequency of a human body part. To achieve this, the high frequency therapeutic apparatus for treating multi-joints comprises: an insulated electrode unit which generates and emits high frequency to a body part through high frequency power supplied with flexibility; and a high frequency controller which controls the high frequency power supplied to the insulated electrode unit. The high frequency controller determines frequency of power supplied in response to the resonance frequency of a human body part. According to the present invention, since the insulated electrode unit with flexibility comes in contact with a curved body part, the generated high frequency is effectively delivered to the human body part. In addition, as power corresponding to the resonance frequency of the human body part can be provided to the insulated electrode unit, the high frequency therapeutic apparatus can minimize power consumption and maximize efficiency. Furthermore, the supplied frequency can be controlled with different resonance frequencies for each body part in real time, thus the high frequency therapeutic apparatus can provide power suitable for each body part. In addition, deep heat can be maximized while minimizing a leakage of high frequency generated in the insulated electrode unit into the outside of the body part by winding a band unit around a cylindrical body part like arms and legs.본 발명은 다관절 고주파 치료 장치에 관한 것으로서, 더욱 상세하게는 다관절과 같이 굴곡진 신체 부위에 맞도록 밀착성을 향상시켜 치료 효과를 극대화하고, 인체 부위의 공진 주파수에 대응되는 고주파를 발생시킴으로써 효율적으로 고주파 치료를 할 수 있는 고주파 치료 장치에 관한 것이다.이를 위하여, 본 발명은 유연성을 갖고 공급되는 고주파 전력을 통해 인체 부위에 대하여 고주파를 발생시