Cao Tian is an easy-to-cultivate high-yield variety, which should be cultivated in a windless and warm site environment. It is the best in the citrus producing areas in central and southern subtropics of China, and it can also be moderately developed in some northern subregions. Parthenocarpy is strong and seedless, but it has seeds when mixed with other seeded varieties, so mixing with seeded varieties should be avoided. In addition, Cao Tian's fruit has been hanging for a long time, so it must be strictly thinned.