The utility model discloses a capillary rising degree test instrument on water, including a moisturizing section of thick bamboo and flourishing water drum, one side of moisturizing section of thick bamboo lower part is equipped with the water inlet that is connected to the delivery pipe, and the opposite side is equipped with the delivery port, and the upside of water inlet is equipped with the gap that is used for controlling water level, and the delivery port of a moisturizing section of thick bamboo passes through the connecting pipe with the water inlet of flourishing water drum lower part to be connected, is equipped with an organic glass section of thick bamboo that is used for adding soil in the flourishing water drum, an organic glass section of thick bamboo form by a plurality of detachable organic glass section of thick bamboo units, the downside that lies in the organic glass section of thick bamboo unit of lower floor is equipped with a plurality of infiltration holes, the bottom that lies in the organic glass section of thick bamboo unit of lower floor still is equipped with the bottom, also is equipped with a plurality of infiltration holes on the bottom, lies in to be equipped with the top cap on the organic glass section of thick bamboo unit of the superiors. The utility model discloses can survey the capillary rise height, the in -process guarantees that the moisturizing is highly unchangeable moreover, can also be according to the difference of the capillary of different soil bodys rising degree on water, through the number that increases or reduce an organic glass section of thick bamboo.