Abstract: Objective: To investigate the safety and clinical effects of the pereutaneous nephrolithotomy(PCNL) guided by ordinary ultrasound.Methods: One hundred and sixty patients treated with pereutaneous nephrolithotomy guided by ordinary ultrasound.The success puncture rate in percutaneous renal channel,bleeding and postoperative complications were retrospectively analyzed.Results: Total 198 channels were established in 169 cases.The success rate of puncture was 96.0%(190/198).The second puncture operation for looking for the residual stone was not successful,but the puncture combined with C-arm X-ray was successful.Seven patients with postoperative blood transfusion for 200 mL to 400 mL were treated with non-selective renal artery embolization.The pleural effusion in 18 cases were identified,and 1 case need to be closed drainage.The postoperative fever in 11 cases,no infectious shock,no poor prognosis,and lungs and other visceral injury were found.Conclusions: The improved percutaneous renal punture guided by ordinary ultrasound in pereutaneous nephrolithotomy is simple,rapid,accurate,economic,high successful rate,which can effectively reduce the difficulty of puncture,and is worthy of promotion in primary hospitals.