The present invention relates to an optical cable connection module having a function of preventing separation of a shutter. The optical cable connection module includes a body configured to have an optical device embedded therein and have U-shaped insertion grooves provided on both sides of the top end of a cable insertion hole on the front side; the shutter disposed in the cable insertion hole of the body and configured to have a rotating shaft provided on both sides of the top end of the shutter, the rotating shaft being inserted into the U-shaped insertion grooves of the body and rotated around the U-shaped insertion grooves; an elastic member disposed in an upper inner portion of the body and configured to have a front end on the front side support the rear of the shutter.