Water lamp with top decoration

A water lamp with a top decoration mainly includes a main body, base seat and top decoration. The main body is hollow and pervious to light, and slightly-thick, flowable low-boiling point fluid is filled hermetically and a poking member are mounted inside the main body; the base seat is configured below the main body, and a control circuit and at least one light-emitting element in electric connection with the control circuit are configured on the base seat correspondingly to the bottom of the main body, and a magnetic rotating shaft attracting the poking member magnetically to rotate is further configured on the base seat; the top decoration assumes a foggy, pervious-to-light, three-dimensional modeling, coupled to the upper side of the mainbody, a light-emitting element in electric connection with the control circuit being configured inside the top decoration. Whereby, the low-boiling-point fluid inside the water lamp will flow due to the heat generated from the light-emitting element when the base seat is switched on, and light further penetrates the top decoration, allowing the present invention to achieve both lighting and dynamic visual effects at the same time.