垂丝海棠（学名：Malus halliana）是蔷薇科苹果属的植物，是中国的特有植物。

落叶小乔木，株高5－8米，小枝幼时被毛，不久脱落。卵形或椭圆形叶片，有圆钝细锯齿。花期4－5月，开淡红色花，芬芳，直径3.5－5厘米，花瓣5－10枚，花柄长3－6厘米。果实成熟后为红色，直径约2厘米。

Malus halliana is an East Asian crabapple species of Malus, known by the common name Hall crabapple. Its Chinese name is chui si hai tang.

It is generally considered to be a native tree of China, although some authors maintain that it is native to Japan, and was introduced into China.