To provide a circular blade cover capable of easily adjusting a clearance between a circular blade and the circular blade cover of a meat slicer.

A pin 10 is press fit on a proper point on an upper part of the side of a circular blade base 2 of a stay 8, and a head of the pin 10 is projected to the side of a circular blade 3. A slit 11a is provided on the circular blade cover 7 in the horizontal direction, the slit 11a is engaged with the pin 10, at this time, width of the slit 11a and a clearance between the slit 11a and an outer diameter of the pin 10 are minimized, and a clearance between a screw diameter of a knob 9 on which the circular blade cover 7 is fastened and width of a slit 8a of the stay 8 is also minimized.