Antiplatelet surface coating is of importance in biomedical applications of implants because platelet adhesion on the implant surface can cause serious problems such as blood clot formation. Various materials have been synthesized and employed for introducing antiplatelet property on solid surfaces. Recently, marine-derived sulfated polysaccharide fucoidan was emerged as an antiplatelet coating material, because of its high resistance to platelet adhesion and abundance in nature. However, previous studies for fucoidan coating were mainly conducted using catechol-conjugated fucoidan because native fucoidan is not adherent to solid surfaces. This study aims to prepare antiplatelet surface coatings with native fucoidan. Solid surfaces are precoated with tannic acid/metal complexes. The native fucoidan is then grafted on the tannic acid-coated surface through metal-mediated crosslinking reactions. The native fucoidan coating can suppress platelet adhesion on titanium/titanium dioxide surfaces by 97%.