The invention relates to a contact-limiting side balloon double-hole urinary catheter, pertaining to the field of medical auxiliary devices wherein a catheter body is made from a polymer blend, a side balloon is provided at one side of the catheter body close to a tip, the other side is provided with an excretion cavity drainage lower hole and an upper hole, and a flushing lumen liquid flow outlet is provided at the tip. After the urinary catheter is placed in the bladder, the side balloon automatically tilts in a water or gas injection state, the balloon wall and the catheter body do not press the trigone of the bladder and the orificium ureteris, the excretion cavity drainage lower hole is adjacent to the orificium ureteris to completely empty the bladder, and there is no residual urine. The tip, the side balloon, the excretion cavity drainage lower hole and upper hole, the excretion cavity, a water or gas injection lumen, the flushing lumen, the flushing lumen liquid flow outlet, an anti-reflux valve, an excretion cavity conical interface, a flushing cavity conical interface and a flushing cavity clipping switch of the urinary catheter are connected into an integral piece via the catheter body, and have a significant effect in clinical application.
