The effects of low intensity microwave on fruit quality,fruit firmness,and the activities of polygalacturonase,pectinmethylesterase,cellulase and β-Galactosidase were studiedusing Wancuikiwifruit treated with different intensity microwave. The results showed that low intensity microwave treatment with 32. 5 W /5 min and 65 W /3min not only maintained high flesh firmness,but also delayed the degradation of soluble sugar,organic acid and Vc.Furthermore it inhibited the activities of polygalacturonase,pectinme...