The invention discloses a two-dimensional green water experimentation device. The two-dimensional green water experimentation device comprises a buoyancy tank, a trolley system, a measuring system and a substrate, and the trolley system is mainly composed of a pulley, a slide block, a linear lead rail, an optical axis, a fish eye joint and a ball sleeve; the measuring system is composed of a computer, a data gatherer, a constant-voltage direct current power supply, a horizontal displacement sensor, a vertical displacement sensor and an attitude sensor, wherein the horizontal displacement sensor is fixed on the substrate through a slot, the vertical displacement sensor is fixed on the pulley through a rib plate, and the attitude sensor is fixed on the buoyancy tank; the substrate is composed of a substrate bottom plate and a slot. The wave interacts with the buoyancy tank to enable the buoyancy tank to move, the motion is transmitted to the trolley system through the optical axis, and the displacement sensor and attitude sensor finish measuring. The two-dimensional green water experimentation device is simple in structure, convenient to operate, stable in movement and suitable for the two-dimensional green water experiment research.