: Catalysts contribute significantly to the industrial revolution in terms of reaction rates and reduction in production costs. An extensive research has been documented in various industrial catalysis in the last few decades. The performance of catalysts has been influenced by many parameters including synthesis methods. The current work overviews the most common methods applied in the synthesis of supported catalysts. This review presents the detailed background, principle and mechanism of each preparation method. The advantages and limitations of each method have also been elaborated in details. In addition, the applications of each method in terms of catalysts synthesis have been documented in the current review paper.