Home care for patients with biliary drainage tube needs to pay attention to three major aspects: keeping the drainage tube open, protecting the wound and reasonable diet. 1. Keep the drainage tube open: fix the drainage tube properly to prevent backflow; pay attention to check the color of the drainage fluid and the amount of drainage, and clean and disinfect the connection and hands before changing the drainage bag to prevent infection. 2. Wound protection: mainly refers to the need to use ostomy bags to protect the drainage tube orifice when bathing, or use multi-layer plastic wrap to protect the wound. 3. Reasonable diet: Eat small and frequent meals, mainly light and easy-to-digest food, avoid high-fat food as well as coffee, strong tea, spicy and stimulating food. Biliary drainage tube patients should follow the doctor’s instructions to strictly comply with the precautions of home care, while maintaining a good state of mind, appropriate exercise, is conducive to speeding up the recovery of the body.