筝弦是钢丝外缠尼龙，如淋雨受潮或手汗过多会使里面钢丝生锈，弦子发黄，易老化。平时不要用潮手弹筝，不要用潮布抹筝弦，不要用小刀或其他硬器刮弦，除尘请用软毛刷子，灰尘应及时处理。
  Zheng string is made of steel wire wrapped with nylon. If you get wet in the rain or sweat too much, the steel wire inside will rust, the string will turn yellow and easy to age. At ordinary times, do not play the zither with damp hands, do not wipe the zither string with damp cloth, do not scrape the string with a knife or other hard device, use a soft brush for dust removal, and the dust should be treated in time.
弹筝前要洗净手并擦干，以防手指上的水、汗、油等粘在弦上，使弦被弄脏或生锈而缩短使用期，为了防止灰尘，最好做一个筝帔或筝罩，弹奏结束将筝罩(盖)好。
Wash and dry your hands before playing the zither to prevent the water, sweat and oil on your fingers from sticking to the string, which will make the string dirty or rusty and shorten the service life. In order to prevent dust, it is best to make a zither or zither cover, and cover the zither cover (cover) after playing