The utility model relates to novel sheet bar flat structure immersion type water opening for continuous casting of a continuous equipment, which is constituted by a circular tube shaped steel fluid inflow end, a flat-shaped steel fluid outflow end, and an elongated barrel-shaped body whose cross section shape is smooth and transits successively which connects the steel fluid inflow end and the steel fluid outflow end. The steel fluid outflow end is provided with five steel liquid spitting holes, wherein except the two upper spitting holes and the two lower spitting holes which are symmetrical in the left side and the right side, the right center of a fluid opening working end is further provided with a central spitting hole which is perpendicularly downward. The utility model has the advantage that the crystallizer fused bath high temperature area can be completely moved upwards, and the liquid level wave can be effectively controlled, and the requirements of high steel liquid flux is satisfied.