In the literature, it is seen that some plants have a positive effect on prevention and treatment of some cancer types. In the right amount, with the right plant and at the right time, using some medicinal folk plants prevented of some types of cancer. The aim of the study was to give some information of eight medicinal plants using for the treatment of some cancer types. When studies and articles which were published in last 10 years on the subject were reviewed, 25 of the plants on which most cancer research was carried out were determined. Among these plants, photographs of plants which are used extensively among the public are given, and the therapeutic effects are given by comparing them with each other. According to the results of the literature research; in the context of cancer and plant relationship, the regular use of Matricaria chamomilla, Capsicum annuum, Brassica oleracea, Morus alba, Allium sativum, Malva sylvestris and Olea europaea has been shown to inhibit the formation of many cancer types and prevent cancer. Aloe vera, Olea europaea and Morus alba has been found to be effective in the treatment of the wounds caused by chemotherapy. It is concluded that Capsicum annuum prevents prostate, pancreas and uterine cancer, Brassica oleracea prevents food borne, stomach, intestinal and breast cancers, Morus alba prevents lung and prostate cancers, Allium sativum prevents breast, esophagus, stomach, colon and rectum cancers and Olea europaea prevents especially pancreas, liver, stomach and breast cancers.