This paper analyzes current mesh simplification methods, and proposes a algorithm based on the quadric error metric (QEM) for feature preserving. It adopts a Half-edge collapse method for mesh simplificationand modifies QEM to remove the discontinuities of appearance attributes. By analyzing the relationships betweenvertices and the discrete appearance seam, a new formula is obtained which enables the edge contraction topostpone the appearance; meanwhile a proper replacer is selected for the wedge in the triangle that has beenaffected by half-edge collapsing operation to avoid material distortion. Experimental results demonstrate that author’s algorithm achieves a similar high efficiency as QEM with desirable geometry and feature-preserving.