Abstract: The research on innovative design of digital jacquard fabrics can be divided into two parts according to the design theory of digital image.This paper made an in-depth analysis of the innovative principle and method of design of colorless digital jacquard fabrics,presented the computer color design principle of achromatic color and the method for setting up of the corresponding holographic digital database of fabric weaves.Starting from the jacquard fabric with single-layer structure,the fabric structure design is separated from fabric color effect design,and the matching and substitution of the gray of digital image with that in the database of fabric weaves are completed automatically through CAD system according to different brightness,thus realizing automatic designing of the fabric structure.This innovative principle and method can meet the technical requirements of artificial intelligent design of the achromatic jacquard fabric and provide a basis for creating a new concept of colorful digital jacquard design.