Indicator in rf switch

An indicator of an RF(Radio Frequency) switch is provided to increase judgment reliability of an normal operation state by restricting performance decrease due to wear or the position change of internal components. In an indicator installed at an RF switch, the RF switch is composed of at least one seesaw(330) grounded; at least one solenoid(320a,320b); cores(390a,390b) wound with coils forming the solenoid; a main plate(300) fixing at least one solenoid; and a PCB(Printed Circuit Board)(400) having a circuit generating a control signal of the RF switch. The indicator has a detector connected with the core. The detector informs the operation state of the RF switch by sensing current if the core is contacted with the seesaw. The seesaw contacts with the core by electromagnetic force generated in applying power to the solenoid.