RESUMEN
Uihgur medicine is not only an important component of medicine for ethnic minorities in China,but an vital supplement to modern medicine.With the development of modern science,in recent years good progerss has been made in basic sciences and applied research of Uighur medicine.According to the property of Uighur materia medica,medicine can be divided into hot,cold,wet,dry,dry-hot,wet-hot,wet-cold,and dry-cold types,and according to strength of medicinal properties,this medicine is divided into four classes.Most of the drugs of levels 3 and 4 are credited with toxicity.This article summarizes the property and toxicity of medicines of levels 3 and 4 which are includel in Pharmaceutical Standards-Uighur Medicine (1998) edited by the former State Ministry of Health of the People's Republic of China.