To provide a reel component counter which can quickly perform the quantity measurement of reel components by improving operability when a band-like body is set.

The reel component counter has a measurement part 15 which measures a feed amount of a reel component by rotation fitting to a feed hole 14 provided at a prescribed interval in a band-like body 11 for measuring the quantity of housed components 12 by feeding a reel component 10 housing the component 12 at a prescribed interval in the longitudinal direction of the band-like body 11 to a take-up reel 6 at a winding side from a component reel 5 at a feed side, a slide block 30 which is opposed to guide the reel component 10 together with the measurement part 15 and a slide means which makes the slide block 30 get close or away to/from the measurement part. The slide means is constituted of a slide shaft and a spring which make the slide block 30 get close or away to/from in a direction perpendicular to the feed direction of the reel component 10 to the rotation center of the measurement part.