PURPOSE: A light illuminating apparatus for fountain is provided to maintain the clean surface of a cover by injection-molding the cover based on transparent polycarbonate and coating a hard film on the upper surface of the cover. CONSTITUTION: A spraying nozzle insertion hole is formed at the center part of a body(110). A settling groove is formed at the peripheral part of the body. A lens(L) is settled in the settling groove. A cover(120) covers the lens. A combining ring(130) combines the body and the cover using a bolt. At least one water draining holes are formed at position adjacent to the spraying nozzle insertion hole.