Silencer for cannon

The present invention provides a silencer for an artillery which comprises a silencer capable of being installed in the front of the artillery to accommodate an end of a train of artillery; a pipe installed inside a body of the silencer and formed to extend along a passage where a bullet moves for the bullet launched from the train of artillery to pass through the inside thereof when launching the artillery; and multiple holes formed on the pipe to reduce noise by dispersing gas generated when launching the bullet.