The effect of line attributes, defined by ISO13660 standard for digital hardcopy imaging, on text perceptual distinctness is investigated. For lines with equivalent widths and strokes of Black Type Chinese charatescs and Times New Roman English letters with 6.5 points and 10.5 points, the line attribute parameters of their hardcopy prints are measured. And evaluations of the psychophysical distinctness on the text with a little strokes and line stripe, are carried out. Then a linear correlation model is built up between them. Experimental results indicate that the text perceptual distinctness can be linearly related to line′s contrast, raggedness, relative blurriness and line width, and always positively related to the contrast and negatively related to the raggedness and the relative blurriness. Whereas, in the case of simple strokes or strokes with large distance, there is a positive correlation between the text perceptual distinctness and line width, otherwise, negative correlation. Additionally, there is at least 1 time difference in the influence weight of each line attribute on the text perceptual distinctness.