The invention discloses a low-temperature working condition valve core sintering manufacturing process, and belongs to the field of valve manufacturing. The low-temperature working condition valve core sintering manufacturing process comprises the following steps of selecting materials, pressing the selected materials into balls, carrying out sintering treatment, putting a sintered blank into an inner straight pipe, carrying out polishing, carrying out cleaning, carrying out spraying to form a coating and the like. The processing technology is reliable, so that a finished valve core is more reliable.