A needle groove body (1), a puncture frame body and a puncture frame,wherein the needle groove body (1)is a hollow cylindrical structure,and comprises a first baffle (11), a first fixing plate (12), a limiting plate (13), and a second fixing plate (14) which are connected in sequence.The present invention has the following advantageous effects:the needle groove body (1) has multiple different specifications and can adapt to puncture needles of different specifications in puncture operations；the needle groove body (1) is easy and convenient to fix and replace, easy to operate, and capable of allowing a doctor to operate with one hand；a u-shaped needle groove (3) can be formed between the first baffle (11) of the needle groove body (1) and a second baffle (21) as well as an inclined mounting plate of the puncture frame body so as to accommodatefree movement of apunctureneedlein the u-shaped needle groove (3)； and the u-shaped needle groove (3), which is semi-open, can implement a function of needle-frame separation(separation of the puncture needle from the puncture frame) in puncture operationsat any time.
