The invention provides a special functional catheter set for medical treatment. The special functional catheter set comprises a catheter and an outer packaging bag, wherein gelatin is coated on the outer wall of the catheter, and an inner packaging bag for containing purified water is arranged between the catheter and the outer packaging bag. According to the special functional catheter set for the medical treatment provided by the invention, through the combination of the gelatin coated on the outer wall of the catheter and the purified water arranged between the catheter and the outer packaging bag, the lubricating property of the outer wall of the catheter is improved, the pain of a patient can be relieved effectively; a bottom layer and a surface layer which are made of composite materials form the outer packaging bag and achieve a microorganism shield effect after sterilization; and by virtue of a tearing layer made of a Dupont Tyvek material, the multiple effects of sterilization, resolution, high burning and bonding intensity, permeation prevention, and high 'easy handle' fastness in opening are satisfied, and the use safety of the patient is ensured.