The present invention provides a device for guiding a puncture tool to form a pilot hole through which a pedicle screw is buried in a pedicle, the device including a linear reference pin that is disposed forward from a rear side of a spine toward a target point of a pedicle base and serves as a reference; a tubular sleeve having a sleeve central axis disposed at a predetermined insertion angle to the reference pin, and having a distal end that is open toward the target point and through which the puncture tool is passed and guided; and a rod member that couples a proximal side of the reference pin to the sleeve and maintains the sleeve central axis at the predetermined insertion angle to the reference pin. A plurality of slits for confirming, by an X-ray fluoroscopic image, whether or not the puncture tool guiding device is installed accurately on the pedicle are formed in a side surface of the sleeve, and the slits are formed such that a cutting direction of the slits is orthogonal to the reference pin. A shape of a slit portion is recognized by the X-ray fluoroscopic image, and consequently, the puncture tool can be easily guided.