Abstract: Low-temperature plasma treatment and pigment dyeing technique have the advantages of simplifying the printing and dyeing process, saving the water and the energy, protecting the environment and etc. The pigment dyeing property of low-temperature plasma modified silk fabric is improved. The influence of the pigment dyeing property of low-temperature plasma modified silk fabric is researched by K/S value testing, rubbing fastness, washing fastness, flexibility, permeability and the scanning electron microscopy(SEM) which is used to reveal the fiber surface morphology. The low-temperature plasma modified silk fabric is hold at the condition of 150 W power and 10 Pa Vacuum for 3 min, then, the pigment dyeing effect of the modified silk fabric is improved observably. The pigment (50g/L) and adhesive (80g/L) are mixed to be cured at 120 ℃ for 3min. The dyeing depth and other fastness are improved obviously in this process.