Xiuyan jade needs a certain humidity to keep its jade quality. Long-term standing and wearing will make xiuyan jade "water head" insufficient, so we need to replenish water to xiuyan jade regularly. We can put xiuyan jade in water and leave it quietly for five or six hours. Be careful not to put it where the sun can shine. Only in this way can xiuyan jade have enough water to maintain its jade quality, and we can replenish water to xiuyan jade every two or three months.