After the pancreatic tail pseudocyst resection tube should pay attention to keep the drainage smooth, when the drainage flow is less than 10ml/d, the amylase measurement value of the drainage fluid is normal, suggesting that the channel between the cyst and the pancreatic duct is closed, and the tube can be removed. Pancreatic tail pseudocysts are mostly extubated after the disappearance of the cystic cavity in 7 to 10 days after surgery, and the longest one can reach 6 months. Whether the tube can be removed after pancreatic tail pseudocyst resection depends on the value of amylase in the drainage fluid, if the amylase is high, then the tube can not be removed for the time being. If the amylase is normal and there is no other discomfort, and the blood routine and other indicators are normal, then we can consider removing the drain. At present, although there is not much drainage fluid, but the drainage tube amylase is high, it is recommended to continue to observe, not to pull out the tube. Consult the attending physician to determine if the drain can be removed.