Abstract: A water supply hose connecting device for a washing machine which is easy to couple with and release from a water tap and which is capable of preventing water leakage. The water supply hose connecting device for a washing machine includes an upper connecting member for the device in a watertight manner to a water tap, an intermediate connecting member formed with a female threaded portion so as to be threadedly coupled to a male threaded portion formed on the upper connecting member. A lower connecting member is formed with openings and a flange so as to be firmly coupled to the intermediated member. A control member is provided for controlling the coupling and releasing of the intermediate connecting member and lower connecting member.