The utility model discloses a test tube is kept in to sort and is selected drop tube ware. It includes: work platform, the last support that is used for providing fixed position that is provided with of work platform, a plurality of parallel arrangement be in work platform is last, has predetermined inclination's test tube buffer tank, the setting is in on the support, be located a X axle mobile device of test tube buffer tank top sets up Z axle mobile device on the first slip table, drop tube mechanism, the drop tube establishment of institution is in follow with the restriction test tube bottom one side of test tube buffer tank landing among the test tube buffer tank, put a tub mechanism, it is in to put a tub establishment of institution the work platform below is used for holding the follow test tube, the 2nd X axle mobile device and the Y axle mobile device of landing among the test tube buffer tank. This test tube is kept in to sort and is selected drop tube ware can judge voluntarily that article have or not and carry out nimble, quick, accurate test tube grabbing operation under the circumstances of little volume and little operating space.