Firstly different sizing agents were coated on non-porous substrates,and then offsetink was coated onthe coated substrates using IGT print ability instrument.Based on cross cut test and image processing technology,ink-coating adhesion was accurately measured by QEA PLAS II.The results showed that the surface freeenergy,chemical polarity and cohesion of surface sizing agents,to some extent,have an effect on the ink-coating adhesion.The ink adhesion of the common sizing agents was obtained,so as to propose novel methods toselect sizing agent and to develop new sizing agents.