The female costume style tends to the diversified development along with the times change. Women's social status has been raised gradually because they are more occupationally involved nowadays. Female costume now competes in the market by focusing not only on soft or romantic atmosphere but also on masculine neutral style in the sense of simplicity and power. Costume is a product with sense of creation, art and sensibility as well as an expression of human sense of beauty and preferences. ＂International, cross-field, innovation＂ has simply become the new showroom of fashion. This research applies the ＂eight basic methods＂ and ＂nine principles＂ on the base of habitual domains to get on the cross-field costume design and creation combining art painting and fashion female costume. The designer tries to design the modern fashion costume with the inspiration from the vivid strokes of the oil painting— ＂Red Flower＂ by the Asperger Artist Lo, Techia and the hard lines of men's shirt. The digital printing technology is applied to display the ＂Red Flower＂ perfectly on the chiffon yarn and jacquard fabric. The cross-field artistic costume creation combines art, digital technology and design and outlines another artistic tide. According to the research, fashion design is a cross-field multi-level interactive behavior combining creative thinking, surface design, color plan, material application and style design. The interaction and relevance among all the fields is inseparable. The designer applies the ＂eight basic methods＂ and ＂nine principles methods＂ to achieve the cross-field overall image of the fashion with the perfect creation exchange, international standards, and knowledge trans-boundary.