To provide a drainage cover of a waterproof pan capable of draining a specific discharge of drainage as well as high-class sense.

A drainage cover section is so constituted that a drainage cover 10 covers a washing place 20 side of a drain outlet 11 provided across a bath-tub mounting section 40 and a part adjacent to the bath-tub mounting section 40 of the washing place 20 in a waterproof pan 30 monolithically formed of the washing place 20 and bath-tub mounting section 40. Then, the drainage cover 10 provides a jetty 102 to the end edge of a drainage cover main body 100, a drain hole 101 is provided in the basic end section of the jetty 102, and it is constituted of the surface of the drainage cover main body 100 having the same surface of slope as that of the washing place 20 toward the drain hole 101 or the surface of slightly steep slope.