Groove cutting positioning device for oblique saw

The invention discloses a groove cutting positioning device for an oblique saw. The device comprises a body, a body support, a locking device, a depth pressing sleeve and a head locking plate, wherein a positioning boss is formed on the body; a hole matched with the positioning boss is formed in the head locking plate; the head locking plate is sleeved on the depth pressing sleeve; the locking device is connected with the head locking plate; and the depth pressing sleeve is connected with the body support. By the groove cutting positioning device for the oblique saw, under the action of a locking handle knob and the head locking plate, the height of a saw blade can be conveniently adjusted, grooves at different depths are cut, the device is simple and practical, and the working efficiency of groove cutting is greatly improved.