Based on the construction of FM micro-dot model, the inkjet printing quality system of 3 levels was established by extracting the micro-parameters with the combination of macro quality indexes for prints. Based on the 3-layer hierarchical criterion mechanism, the first level of the system evaluated the printing quality of every single color using fuzzy AHP; the second level of the system evaluated the quality of four colors in each region by fuzzy comprehensive evaluation method; the third level evaluated the overall quality of the ink jet proof by weighted arithmetic average algorithm. The system fully considered the micro and macro factors which had impacts on the printing quality as well as their correlation. Besides, it determined the weight of different parameters objectively and deduced the quality evaluation scale accurately. The verification showed that the evaluation was consistent with the subjective result. In conclusion, this quality evaluation system had strict theoretical structure with specific calculation steps. The evaluation results were clear and highly systematic. It offers a new method for inkjet printing quality evaluation.