Pre-operative ultrasound is recommended to effectively assess whether the cryptorchid is located in the retroperitoneum, inguinal canal or scrotal inlet, and to check for alpha-fetoprotein, carcinoembryonic antigen, chorionic gonadotropin and lactate dehydrogenase to effectively assess whether the testis is cancerous. If there is no cancerous lesion, laparoscopic cryptorchidism exploration and cryptorchidism descending and fixing surgery can be considered, and if cancerous lesion is suspected cryptorchidism resection surgery can be performed. It is recommended that patients with cryptorchidism should undergo surgery at an early stage, and it is recommended that surgery around 2 years old is the best time for surgery.