The cement stabilized aggregate has been widely used in the pavement base，but it is rarely used in port engineering. Combining with a port yard base construction，we study the production mix ratio design of the cement stabilized aggregate，expound on the design process of the production mix ration of the cement stabilized aggregate from the confirmation of the target mix proportion，grading adjustment of the aggregate production respectively，cement content-EDTA relation curve，delay curve and strength-water content curve，and confirm the production parameters including aggregate gradation，cement dosage，water content，as well as rolling delay time，providing a theoretical basis for the construction of the yard.