The orthogonal method is applied to the mixture proportion of cement stabilized (maca)-(dam).Some factors affecting the 7 d unconfined compressive strength such as concrete content,macadam content and macadam gradation are ordered through dissimilarity and mean square difference analysis,as a result the best scheme is put forward.The anti-cracking performance of skeleton dense type mixture and suspended dense type mixture are researched to make clear that the skeleton dense type mixture has better mechanical performance.