A high-mesh and high-modulus screen fabric excellent in the stability in weaving, the stability as screen fabric, and continuous printing performance can be obtained by subjecting a woven fabric constituted of monofilaments for screen fabric which exhibit, after moist-heat treatment, a degree of inclination change (B/A ratio) of 0.6 or above but below 1.0 in the elongation-stress curve wherein A is an inclination just before the primary yield point and B is that just after the primary yield point to treatment with boiling water, heat-setting the treated fabric in a state stretched by 0.2 to 5% in the both warp and weft directions, and then setting the resulting fabric in a state further stretched by 0.3 to 5%.