Collected harbour sediment was blended with natural clay and sintered in elevated temperature for brick making. Appropriate replacement percentage of sediment was investigated for the future engineering application purpose. Basic characteristic of harbour sediment indicates that composition of sediment is similar to raw materials of red brick. Further experiments on physical-chemical characteristics of sintered bricks indicate that 10%-90% of replacement of harbour sediment could meet the【CNS 382 Bricks for Building】second grade red brick criteria. In addition, the toxicity characteristic leaching procedure results show that, regardless of the harbour sediment replacement percentage that there are no leaching phenomena of heavy metals from the sintered bricks. Combining the physical-chemical characteristics and toxicity characteristic leaching procedure results, harbour sediment is feasible for brick sintering, and the technique could provide as the follow-up resource recovery direction of harbour sediment.