The invention provides a thread producing machine. The thread producing machine is composed of a tapping main machine body and a feeding machine body, the feeding machine body and the tapping main machine body are connected together through a slideway mechanism. The novel thread producing machine has the advantages that the cost is low, the whole machine is composed of a plurality of mechanisms and is not only provided with the conveying and machining functions, the feeding machine body can integrate and sequence workpieces, the workpieces can be conveyed in order, the feeding speed is high, the working efficiency is improved, the working noise is low, the tapping main machine body can clean the surfaces of products at the same time, the product quality is detected, the operation is simple, the requirement for workers is low, the labor resource cost is lowered, workpieces switching is easy during the work period, when a fault occurs or the machine needs to be maintained, the problem can be rapidly detected, mechanism replacement is simple, the maintenance cost is greatly lowered, an existing open type machining mode is modified, a closed machining mode is designed, the phenomenon that the environment is polluted due to splashing of oil mist in the machining process can be avoided, and meanwhile, machining oil can be further recycled and filtered, and the machine is more environmentally-friendly and more durable.