Abstract: The paper puts forward the theory of combination of pattern design and knitting technology for the design of various styles of knitted sweater and offers the ways how the pattern is converted into the knitting technology,including zigzag line converted by curve,straight line converted by curve,application of vertical line segment and the effect of knitting machine.By converting the pattern into knitting panel based on the knitted technology,products of knitted sweaters with fresh and distinctive style can be acquired and the shape of the style can be achieved better according to this theory.The combination can open up thoughts for design and enrich fashionable styles of sweaters.