Multi-level control technology of inkjet printing achieves multi-level output by controlling the size and placement of tiny ink droplets. It has influence on the color reproduction process. Color target was designed and different levels output were carried out. The influence of multi-level output was analyzed from the aspects of color gamut and color gradation. The results showed that the higher the level, the larger the gamut; the lower the level, the more levels of the color in the bright tone area; the higher the level, the more levels of the color can be reproduced in the middle and dark tone area.