The steps of kidney cyst puncture are roughly as follows: first step, position yourself; second step, disinfect the puncture site locally and thoroughly; third step, localize the kidney cyst with a sterile ultrasound probe and determine the path of puncture; fourth step, do local subcutaneous infiltration anesthesia along the puncture path with a local anesthetic needle; fifth step, puncture the cyst with a kidney puncture needle along the above puncture path under the supervision of ultrasound, and slowly aspirate part of the cystic fluid after successful puncture, and then slowly withdraw the needle after the cystic fluid is reduced to a certain degree; sixth step is local puncture site compression bandage.