Ophiuroids are important components of the macrobenthos and marine ecosystem. However, most previous studies have focused on taxonomy and little is known of their biology or ecology. References on ophiuroids in the Chinese literature are both few and dated. This study focused on the food preference, feeding rate, and feeding behavior of . The objectives were (1) to achieve an understanding of the feeding habits of , (2) to supplement the literature on ophiuroids, and (3) to attract people’s attention on the study of ophiuroids. The results revealed that can only feed on suspended organic particles through differentiating food particles by size. It can feed on particles ranging in diameter from 10Platymonas subcordiformisf. is both polyphagic and a member of microphagous group. When the were The food was collected and formed into a small food ball by the tube feet at the end of the arm. The food ball was then transported to the mouth and became enlarged. When they were not ingesting, the arms were either stationary or cocked at the end. The feeding rate of smaller < 0.05)feeding activity occurred between 8:00‒14:00, but there were some that ingested food at any time. Therefore, no specific feeding rhythm was observed.