Abstract: Purple jasmine has various colors and high ornamental value. It is often used in landscaping. It blooms in summer and autumn. It usually blooms from evening to early morning. It emits a strong fragrance at dusk, making visitors feel more comfortable. In addition to its ornamental value, purple jasmine can be used as medicine to treat dysentery and has the effect of clearing heat and detoxification. At present, it is widely used in garden landscaping and has strong ornamental effect.