Abstract: The paper takes the new product of slope revegetation strengthening agent as the object of study,and describes the tests and analyses of the physicochemical property,water retention and plant growth of the product.The result indicates that the dosage of product is suitable at 120g/m²and 120g/m²in the simulated soil and rocky roadside slopes,and the product at this dosage can promote seedling emergence rate and have better effect on water retention.So it can be used and popularized extensively in the soil and rocky roadside slope revegetation.