The quarry run quality is difficult to meet the requirements of the contract and technical specification because of the increase of fine content caused by high quarry run stock, so we strengthen the source control of the quarry run to meet the grading requirements. To minimize sieve quantity of quarry run on site, and ensure the construction progress of breakwater, we verify the section model test through setting the middle layer and adjusting the grading of the guarry run to provide a technical support for the breakwater engineering.