The invention discloses an auxiliary device for tumor chemotherapy puncture, which comprises a base, an arc groove is centrally arranged at the bottom of the base, and the interior of the base is symmetrically opened on both sides of the arc groove. There are two first cylindrical through-slots, a second cylindrical through-slot communicating with the arc-shaped groove is provided on the upper part of the base, and two sets of fixings are provided symmetrically at the bottom edge of the base unit. The utility model is safe and reliable, can prevent the circular plate from scratching the bottom of the bed of the patient's bed, and can prevent the irritable patients from turbulence due to the binding effect of the arc-shaped groove and the two first cylindrical through-slots, resulting in the inability to puncture The patient's body fluid is extracted and has the function of compressing and stopping bleeding.
