The invention discloses a filiform needle outlet device, and relates to the technical field of medical treatment. The device comprises a sleeve body and blocking cloth which is communicated with the sleeve body and provided with a small upper part and a large lower part; the sleeve body and the blocking cloth are made of transparent soft silica gel; a sleeve inner hole in the sleeve body is provided with a small upper part and a large lower part; the wall thickness of the blocking cloth gradually gets smaller from the cloth head to the cloth bottom edge; a vertical gap is formed from the clothhead to the cloth bottom edge, and the height of the blocking cloth is greater than 25 millimeters. The device can solve the problem that when medical staff take out needles by hand in the acupuncture therapy, patients or surrounding personnel are easily stabbed or accidentally injured by needles.