From the end of September every year to the end of February of the following year. The shape of Zhoushan hairtail is small, with a small head and the most important eyes are small, so Zhoushan hairtail is also called "small-eyed hairtail". The shape of Zhoushan hairtail is narrower and thicker than other hairtails at the same weight. It is more plump, and the meat is the most tender and plump 20 days before and after the winter solstice, so the market time is from the end of September each year to the end of February of the following year.