The measurement algorithm and evaluation model for the visual perceptual quality of print sharpness are studied. A test target with slanted-edges is designed for print sharpness evaluation based on the factors analysis for print sharpness, and an optimized measurement algorithm for print sharpness quality metric is proposed based on the truncated frequency band. The objective measurement and subjective evaluation experiment are carried out for 26 digital prints with different sharpness effects, and a new evaluation model of perceptual print sharpness quality is established based on the subjective and objective data coupling. Verification tests of 20 other digital prints show that the predicted scale has a good agreement with the subjective evaluation scale, whose correlation index is 0.9916. This agreement proves that the quantitative evaluation method for the perceptual quality of print sharpness is feasible and effective, and can solve the problem for which is only rely on the subjective visual evaluation by human eyes in the printing industry.