High entropy alloys (HEA) have attracted the attention of many researchers due to their unique properties such as resistance to wear, oxidation, corrosion and high strength. HEA are multicomponent alloys in which at least five elements are mixed in equal or unequal proportions. The rapid growth of these alloys has led to the writing of a large volume of scientific articles. However, there is still a need to investigate different fabrication methods and their results. In this review article, in addition to the full introduction of high entropy alloys and their characteristics, it was tried to investigate the production methods of these alloys. Among the manufacturing methods of high entropy alloys, casting processes are particularly important due to the possibility of controlling the process and obtaining homogeneous structures with suitable mechanical properties. The results including hardness, strength and microstructure, extracted from various articles in the field of high entropy alloy production by casting method, are explained.