Amniocentesis positioning device

The utility model belongs to the technical field of gynaecology and obstetrics medical treatment, and particularly relates to an amniotic fluid puncture positioning device which comprises a collecting body, a fluid storage tube arranged in the collecting body, a sampling needle head arranged at one end of the fluid storage tube and a fixing assembly arranged on the surface of the collecting body. By arranging the fixing assembly on the collection body, the collection body can be conveniently fixed to the abdomen of a pregnant woman during use, and the collection body can be stably fixed to the abdomen without displacement and shaking during amniotic fluid puncture collection, so that the stability of the device in the collection and use process is enhanced, and the use safety in the collection process is improved; when in use, the liquid storage pipe is firstly extruded downwards to move, the clamping block on the second sliding block is extruded to be connected with the sampling needle head below the clampin