To provide a high frequency switch circuit capable of ensuring high isolation characteristics in a plurality of frequency bands while reducing the number of components as little as possible.

An inductor 9 and switches 5-8 are arranged and a capacity component at the time of turning off the switches 1-4 and the inductor 9 are resonated in parallel to improve isolation characteristics. Furthermore, all the switches 5-8 are turned off to ensure isolation characteristics other than a resonance point.