To provide a machining equipment line for a steel pipe manufacturing billet capable of improving production efficiency, reducing the number of workers, and stabilizing quality.

A cutting machine 13 cutting a material by a predetermined length, a boring machine 22 boring a hole with a predetermined diameter in the axial center of the material cut by the cutting machine 13, and an end face machining machine 27 performing machining of an end face, a round, and a taper in the top side end part of the material bored in the axial center by the boring machine 22 are arranged sequentially. Between the cutting machine 13 and the boring machine 22 and between the boring machine 22 and the end face machining machine 27, conveying and transferring devices conveying and transferring the machined material to the following equipment are arranged. A controller is arranged for carrying out production schedule management, setting of a machining/conveying condition, and instruction to each equipment. In this way, unbalance between the respective equipment is reduced, and the production efficiency is improved and the number of workers can be lowered. By systematization of production schedule management, setting of a machining/ conveying condition, and instruction to each equipment, quality can be stabilized.