Herbal drug is described as fragmented or cut plants, plant parts, algae, fungi, lichen in an unprocessed, usually dried form but sometimes fresh. Herbal drug preparation is obtained by subjecting herbal drugs to treatment such as extraction, distillation, expression, fractionation, concentration or fermentation. Herbal medicine and herbal medicinal products; exclusively containing as active substances one or more herbal drugs or one or more herbal drug preparations, or one or more such herbal drugs in combination with one or more such herbal drug preparations. Standardization is the term for describing the process of arranging a product derived from a herbal drug and mixing it with excipients from a substance or group of substances which has known effects. The quality of herbal medicines has a direct impact on their safety and efficacy. There are many control measures for herbal medicines, and the first important step is to control the quality of herbal drug and/or herbal drug preparations. The quality standarts designated by EMEA (European Medicines Evaluation Agency) and the European Pharmacopoeia for the herbal drugs, herbal drug preparations and herbal medical products will be explained and information will be given on the required standarts and quality control methods with sonic cases.