The invention relates to a processing technology of noodles with four-phase variable-temperature drying method. The processing steps are completely finished in a chain and track type drying room. The chain and track type drying room comprises a cold-blast air zone, a drying zone, a main drying zone and a drying finishing zone, and the producing steps comprise (1) cold-blast, (2) rising temperature drying, (3) high-temperature main drying and (4) falling temperature drying. The invention has the characteristics of low temperature, low speed, steady process, easy mastery, and the like, and dried noodles produced by the process has the advantages of flatness, smoothness, good noodle shape, good product quality and no crisp part. By adopting the different speeds and temperatures of air flows in every zone of the drying room, the invention reasonably achieves the goal of fluent drying, realizes the same speed of inward and outward diffusion of noodles, consequently improves the drying effect, effectively prevents noodles from crazing and getting crisp, ensures the noodle quality and saves the energy at the same time.