Abstract: Content adaptation is a way to solve the compatible problem of heterogeneous terminals in the convergence environment.When the limited terminals update the contents，existing adaptation strategies may cause information loss.This paper proposes a two-way content adaptation strategy supporting partial update which constructs a universal store model to store both the metadata and the adaptive result data based on the DOM tree.When the limited terminal updates the content，this strategy partly updates the content by comparing the nodes in the DOM trees.The experiment shows that the strategy proposed reduces the information loss by more than 60%.