Abstract: Provided is a fly exterminating apparatus where flies are attracted to a main body that is movable in an orbital-to-spin method and then are suctioned and captured by a vacuum negative pressure. Also, a shock generation part that generates an electrical shock due to current by being associated with the moving main body when contacting the flies is provided to exterminate the flies; a reflective plate that discombobulates the flies to make away with the flies is disposed to exterminate the flies through various methods. The fly exterminating apparatus includes a main body on which a caterpillar that orbitally rotates and wheels are disposed on a lower portion thereof to move in an orbital-to-spin method, an attracting unit mounted on the main body to attract flies, and a capture unit connected to the attracting unit to suction the flies attracted by the attracting unit by using a vacuum negative pressure.