Abstract: Huanglongbing is a devastating disease in the citrus production. In recent years, the disease has occurred in many major producing areas of citrus in the world, which has aroused the concern of world researchers and citrus producers. Now, the pathogen thought to be a kind of phloem bacteria which is difficult to culture. Although there have been a variety of methods of treatment against Huanglongbing disease, but those methods only can alleviate the symptoms of Huanglongbing disease, we still lack the effective treatments to cure Huanglongbing. In this article, we outlined the transmission of Huanglongbing, the detection methods and treatment methods, hoping to promote the further study of Huanglongbing.