Abstract: To investigate the application properties of pigment based ink,ink jet printing was carried out with six kinds of pigment-based ink in(8 pass)(720 dpi) on various fabrics with different structures,including cotton,polyester,silk,tencel,cotton/polyester,cotton/nylon and polyester/nylon/cotton,and the properties such as color yield,color fastness,sharpness and fabric style of the printed fabrics were discussed.The experimental results revealed that the surface property of the fabric is the key factor influencing the quality of ink jet printing.As to dense weave fabrics of hydrophilic fibers,the higher the K/S value,more sharpness the prints,but slightly lower fastness because they are able to deposit ink on fabric surface.As for open weave fabrics of hydrophobic fibers such as thin polyester or silk fabrics,pretreatment is necessary to ensure fine and excellent printing.