Abstract:Konjac glucomannan and corn starch were used as main raw materials to form the mixed system.The rheological properties of the system were studied by changing the ratio of konjac glucomannan and corn starch，or adding different amounts of sodium carbonate to the system.The results showed that the mixed system belonged to pseudoplastic fluid and presented an obvious shear thinning phenomenon.When the quality ratio of konjac glucomannan to corn starch was 1∶2，the zero-shear viscosity and the gel property of the system reached the maximum.In addition，the sodium carbonate content was positively correlated with the zero-shear viscosity and gel strength of the system.The research could provide basic information for the mixing between starch and hydrophilic colloid，and provide reference for the application and quality control of konjac glucomannan and corn starch mixed system in food industry.