A wash basin cabinet apparatus in which a wash basin cabinet used in a bathroom space is converted into a home appliance. The wash basin cabinet apparatus includes a wash basin including a faucet; a frame including a front frame that supports a lower portion of the wash basin and having an independently closed loop shape, a rear frame having an independently closed loop shape, and a bottom frame connecting the front frame and the rear frame; a base plate forming the bottom surface of the frame; and a dryer disposed above the base plate, the front frame and the rear frame each having longitudinal members of the same shape at both sides thereof.