A water dance device with display screen effect primarily comprises a box body therein are disposed a rotating water spray unit, a swinging water spray unit, a multicolored water spray unit, an intermittent water spray unit, a fogging device, and a laser projector. The rotating water spray unit and the swinging water spray unit are disposed to provide rotating and swinging water jets; the multicolored water spray unit is disposed to provide water jets of various colors; the intermittent water spray unit is disposed to provide single projectile water jets; and the fogging device is disposed to provide a foggy veil for the laser projector to project texts or images thereon. Providing various forms of water dance performance composed in its box body and advertising effect, the present invention may be placed in businesses, stores and shops for achieving the purpose of attracting potential customers.