Self-sealing test tube convenient to grab

The utility model relates to a self-sealing test tube convenient to grab. The problems that in the prior art, a test tube plug is difficult to seal instantly, liquid temperature and pressure in a test tube are easily affected by direct hand contact when the test tube is grabbed, and experimental data are affected are solved. The test tube comprises a test tube body, the bottom of the test tube body is inserted and positioned in a test tube storage disc, a handle storage part is arranged on one side of the test tube body in the circumferential direction, a grabbing handle assembly capable of stretching and contracting is arranged in the handle storage part, a handle limiting structure is arranged at the upper end of the grabbing handle assembly, and an insertion type sealing cover body is arranged at the upper end of the test tube body. And a sliding jacking type liquid guide structure is arranged on the circumferential inner side of the plug-in type sealing cover body. The test tube has the advantages that th