In order to adapt to the changes about key technologies in the new technical guidelines for construction well such as strength improvement and balance the contradiction between strength and cracking effectively. Combined with different materials such as raw materials, weather conditions in Guangdong Province, an Experimental study on mechanical properties and shrinkage properties of cement stabilized macadam with different cement doses and gradations was made. The relationship between Strength, dry temperature shrinkage coefficient and the cement dose, gradation, water loss rate and temperature were analyzed. The regressions models, the strength and the dry heat shrinkage coefficient with different cement dosages under different gradations, and the conversion formula between 7 days compressive strength and 90 days flexural-tensile strength were established. Combined with the evaluation method of crack resistance, the cement dose range under different gradations to avoid material’s cracking was calculated. The results show that 7 days compressive strength, flexural-tensile strength and dry shrinkage coefficient increase as cement dosage increases or gradation gets fine. When the cement dose is 4.5%-6%, the representative value of 7 days strength under medium and fine gradation is between 4.95MPa and 7.30MPa, and the representative value of 90 days flexural-tensile strength is between 1.19Mpa and 2.20MPa, which provides a reference for material design and structural design. When the cement doses under coarse, medium, and fine gradation are from 4.5% to 7%, 4.5% to 6.97%, and 4.5% to 6.83% respectively, the material can balance strength and cracking. The actual project verified the rationality of the above-mentioned optimal cement range further.above-mentioned optimal cement range further.