Abstract: he artificial sand nourishment has been rapidly adopted in current sandy beach management in China. However, this practice is often used in cape coast, but rare in straight sandy coast. In this paper, the effectiveness of artificial sand nourishment is assessed for a case of the straight coast which is 4.5 km long and extends from the Yang River to the Grape Island of Beidaihe. By monitoring the remaining nourishing sand per width as well as the changes in berm width, it is found that the best sand nourishment cycle is 9-11 a and the time to keep the berm width stable may last for 1-2 a. It is verified that the artificial nourishment is an effective, feasible and successful choice for protection of straight sand coast if the joint management of "artificial headland head + sand nourishing on berm + construction of underwater sand bar" is insisted for beach restoration.