The yellow leaves of Ardisia crenata may be caused by the low temperature of the curing environment. At this time, it should be moved to a warm room for maintenance. It may also be caused by too strong light in the maintenance environment. At this time, it is necessary to change it to a cool and ventilated place and maintain it slowly. It can also be caused by over watering. At this time, it is necessary to dig it out of the original basin soil and cut off the roots and leaves with growth problems. Then replant it with new soil with good drainage capacity.