The invention relates to a catheter manufacturing apparatus, and aims to provide a catheter manufacturing device in which a support body with a top die, a bottom die and a front end forming a straight fin and an inclined fin is located on a set track based on a time interval set in a schedule, when operating personnel inserts a prefabricated tube body in the front end of the straight fin, the dies are closed, silica gel is automatically injected, a catheter falls off, and the catheter is automatically manufactured within the shortest time under the condition of ensuring that the reject ratio is not the lowest. Different from a traditional device which manufactures a Y-shaped furcation part forming through an additional die and take down the Y-shaped furcation part from the die manually and move manually and thereby assembling a catheter body again, by adoption of the catheter manufacturing apparatus provided by the invention, manufacture of the Y-shaped furcation part and combination of the catheter body are completed in one step, a user only needs to take down the automatically manufactured catheter from the die, thereby remarkably reducing the reject ratio of products, and the catheter manufacturing apparatus has the advantage of substantially improving the yield rate.