PROBLEM TO BE SOLVED: To provide a waterproof cover and a waterproof communication set that enable continuous communication to be easily secured without interruption of radio communication.SOLUTION: A waterproof cover 15 includes: a cover body 13 capable of covering a communication device 11 in a state where the communication device 11 capable of performing radio communication of data on biological information with external equipment 12 is attached to a body surface; and an enhanced antenna 14 that is provided in the cover body and that can be attached to the communication device.