As the world population continues to overgrow, accompanied by substantial growth in food demand expected to emerge in the next 50 years, 70 % of the world census will live in urban areas. In order to feed the growing census, there is a need for sustainable urban food. Producing sustainable urban food requires considering all sustainability factors, including economic, social and environmental advancement. A new method was proposed to address the sustainability concern and meet the growing demand for food, implementing and designing vertical farms. This paper aims to review the vertical urban farming technological tools. Passing through defining vertical farming, what kind of crops can be produced by vertical farming, and why is it important. This study will review the significant challenges and opportunities of Vertical farming. It can increase and maintain high-quality food production and contribute to sustainable urban farming. Well-known benefits of growing food within the urban territory can be beneficial economically, socially and environmentally. Vertical farms can also provide results for increasing food security worldwide. The findings of this study indicate that vertical farming is an efficient tool that can supply food to cities sustainably and help urban areas survive overpopulation in a matter of providing food. This also depends on the location and design areas of future research identified.