Improved puncture outfit

The invention relates to an improved puncture outfit. The improved puncture outfit solves the problem that an existing puncture outfit is not reasonable in design. The improved puncture outfit comprises a puncture sleeve base, a puncture sleeve, a sealing cap and a conversion cap, wherein the outside of the puncture sleeve base is provided with a valve through an installation structure, the puncture sleeve base comprises a side groove formed in the side face of the upper portion of the puncture sleeve base, a pressing body capable of horizontally moving along the side groove is arranged in the side groove, the inner end of the pressing body is provided with at least two locking insertion bodies which are arranged horizontally, the conversion cap is provided with at least two positioning feet, the locking insertion bodies and the positioning feet are arranged in a one-to-one correspondence mode, a clamping structure is arranged between the locking insertion bodies and the positioning feet, and when the pressin