In traditional herbal medicine, numerous plants have been used to treat different diseases. In this review book we have compiled available published literatures and data about medicinal plants from different region of Bangladesh. In total of 231plants from around 50 different families are used for the treatment. The plants that are widely used mainly for folk medicine or aurdbadic treatment by triabal people, kavirajes and even by local peoples. The diseases that are mostly treated with the medicinal plants are very different: skin disease, common cold, fever, sexually transmitted disease, cancer, abdominal pain, rheumatism, gastric pain, women disease, and some of the different infectious disease. We also listed by the plants according to their families and the parts used for the treatment of diseases. We also summarized the diseases treated most with many differents plants. The metabolite extraction, in vitro propagation and conservation also discussed breifly. For some medicinal plants showed antimicrobial and cytotoxic activities are also presented.