The rheological and gel properties of different combination of gellan and xanthan gum mixture were studied,and the interaction mechanism was discussed.The results shown that the viscoelasticity,the storage modulus G′ and loss modulus of G″ increased with the increasing of the proportion of xanthan gum.Adding xanthan gum can improve gel elasticity,cohessiveness and water holding capacity.These results shown that the two polymers mixture may form two separate gels and penetrating through one another at the same time to form a new network structure.