A wound drainage equipment adapted to sucking exudates in a wound is provided. The wound drainage equipment includes a wound drainage assembly and at least one aeration hole. The wound drainage assembly includes a wound cover, a suction appliance and a connecting tube. The wound cover is adapted to being disposed at the wound. The connecting tube has a through hole that is adapted to communicating with the wound and the suction appliance. The suction appliance is adapted to sucking the exudates in the wound through the through hole. The aeration hole is disposed at the wound cover or connecting tube. The aeration hole communicates with the through hole and an external environment. The efficiency of suction about the exudates in the wound according to the wound drainage equipment of the embodiment of the present invention is better.
