More particularly, the present invention relates to a water treatment apparatus, and more particularly, to a water treatment apparatus that can secure a sufficient space for treatment by using a support frame and a fixed frame so as to be movable, The present invention relates to a water treatment apparatus for minimizing the total weight and facilitating easy and convenient transportation. The hydrotherapy apparatus according to the present invention includes a pair of support frames 100 spaced apart from each other by a predetermined distance; A stationary frame 200 disposed between the support frames 100 and fixed to the upper portion of the support frame 100; A sling unit 300 installed on the fixed frame 200 and sliding in the longitudinal direction of the fixed frame 200 by an external force; A locking unit 400 integrally installed inside the sling unit 300 and restricting movement of the sling unit 300 slidable by an external force; And a first rope (340) installed inside the sling unit (300), one end of which is fixed to the body of the patient and the other end is exposed to the outside of the sling unit (300) A guide portion 311 is formed to allow the second guide rod 320 to be inserted into the left and right sides of the space and an insertion portion A body 310 having a groove 312 formed therein; A pair of thin panels 321 facing each other and fixed to the inner surface of the body 310 and a second pulley 330 is installed between the pair of panels 321, An axially coupled support 320; And a first rope (340) connected to the second pulley (330) provided on the support base (320) so as to be connected to the auxiliary belt worn by the patient and the other end to be pulled by the therapist And the second pulley 330 is coupled to both sides of the panel 321 and is rotatable with respect to the center of the shaft so as to support one end portion of the first rope 340, An outer pulley 331; And a support piece 322 formed at the upper center of the panel 321 a