Percutaneous nephrolithotomy is the treatment of choice for large urinary stone and staghorn stone. Supracostal access through the upper calyx provides a straight tract along the long axis of the kidney and is the optimal route for the treatment of staghorn stone. However, the supracostal access bears higher risk for pleural or lung injury resulting in hydrothorax or pneumothorax. Percutaneous nephrolithotomy induced pneumothorax usually occurs immediately after operation. We report a case of delayed pneumothorax after tubeless percutaneous nephrolithotomy for a complete staghorn stone.