PROBLEM TO BE SOLVED: To provide a washing tank capable of improving washing efficiency and reducing a burden on a worker, when washing a dead body.SOLUTION: The washing tank for washing a human body while circulating nanobubble water contained in a washing tank body 10 comprises: circulation means which circulates the nanobubble water contained in the washing tank body 10 to form a circulation flow of the nanobubble water and warm air supply means 90 for supplying a warm air into the washing tank body 10 in order to dry the washed human body.
