The utility model discloses multifunctional patient trousers which comprise a left trouser leg and a right trouser leg. The multifunctional patient trousers are characterized in that the left trouser leg and the right trouser leg are in a fully separated state from the bottom of a trouser crotch to the top of the trouser crotch, and the separation position is connected through a bonding buckle in a bonding mode. On the basic of prior patient trousers, improvement is conducted, the defects in a lithotomy position surgery are overcome, the multifunctional patient trousers are beneficial for keeping warm of patients in the surgery, skin of the patients is protected, exposure area of the skin except incision is reduced, and degree of satisfaction of the patients is improved. Meanwhile, catheter is convenient to indwell for patients with long-term indwelling catheterization, and nursing work is convenient to achieve for nurses of an operating room in the surgery.