Abstract: A drain cover locking device which fits into a drain pipe for the purpose of receiving and holding in place a standard drain cover. In general, the locking device is made of a solid generally rectangular piece of bar material, usually of metal, with one hole drilled through the center of the bar for receiving a fastener, such as a screw, and preferably a tamper-proof screw head, which is first inserted through a center hole in the drainer cover. A threaded rod having an “L” shaped hanger is threaded into each end of the bar material and the “L” shaped piece fits over the drain pipe for holding the mechanism in place. The center piece or generally rectangular piece of bar material is then turned with a wrench or other device until the bar material is firmly held in place over the pipe and the drain screw is then placed over the pipe with the center hole aligned with the center hole of the center bar.