Abstract:Cross-linking hydroxypropylated waxy maize starches with different DS and MS were prepared by using sodium hydroxide as a catalyst, propylene oxide as an ether reagent, sodium sulfate as a swelling inhibitor, and sodium trimetaphosphate (STMP) as a cross-linking reagent. The properties such as acid resistance, salt resistance, transparencies, and freeze-thaw stability were also studied. The result showed that:the anti-acid stability, anti-salt stability, paste transparency and freeze-thaw stability of cross-linking hydroxypropyl compound modified waxy corn starches were effect by the degree of cross-linking and hydroxypropylation. The hydroxypropylation can improve the anti-acid stability, anti-salt stability and freeze-thaw stability of starches, and cross-linking can reduce the paste transparency.