The need of cement stabilized crushed rock was introduced in the situation that the road roller cant vibrate in the rural areas through the construction of main road improvement.The gradation of cement stabilized crushed rock was proposed in the reference of all kinds of theoretical and empirical gradations.The optimization of some kinds of water-reducing additives was conducted by the way of normal consistency.Some experiments were conducted to determine how much the water-reducing additive can do in the compaction of cement stabilized crushed rock.At last,exam section was conducted to exam the results in the lab.