The utility model provides a waterproof bracelet protective sheath, includes protection sleeve body, and protection sleeve body constitutes inside hollow structure by the anti -abrasion layer of outerwaterproof layer and inlayer, and the last junction of protection sleeve body is equipped with sealing rubber, and sealing rubber forms the water -stop, and protection sleeve body is equipped with arch, the protruding buffering that forms with the inside of bracelet contact when the striking. The utility model provides a pair of waterproof bracelet protective sheath through setting up protectionsleeve body, sealing rubber, can carry out water proof, guarantees the bracelet nondiscoloration.