Handle locking device for shutter

The utility model is provided with a handle fixing part (2) and a locking part (3), the handle fixing part (2) is provided with a concave cap part (2c) which is provided with an opening at one end part of a frame-shaped part (2w); and an extension part (2e) that extends obliquely from the other end of the frame part (2w) toward the one end, has an insertion hole (2hl) formed therein, and covers the handle (8) by a vertical operation, the lock part (3) having: a plate-shaped part (3t) having a surface (3fh) facing the surface (2fv) of the extension part (2e) and having a through-hole (3h) formed therein; and a pin-shaped part (3p) which is assembled to the shutter covering the handle fixing part (2) by a lateral operation, and is configured so that a communication hole (2ch) communicating with the through-hole (8h) of the handle (8) is provided in the cap part (2c), the pin-shaped part (3p) is fitted into the through-hole (8h) via the communication hole (2ch), and the through-hole (3h)communicates with the ins