With the progress of our society, the consumer needs present a trend of individuation. Hence the manufacturing modes of many products change to individual character manufacturing mode, in which the producer should acquire the customer needs exactly and timely and translate them to high quality products. In this process, quality control plays a key role. This paper develops a quality control system, in which a synthetic process quality judging method against individual manufacturing is adopted. The method makes up the blemish of traditional SPC method and can work well even when it lacks enough data. The practical application of the system has proved its effectiveness and practicability.