The economic production capacity of a farm could be effectively ascertained with the aid of crop map. With the help of yield maps farmer could benefit by increasing the effective placement input management and better map their profitability. While this yield sensing technology is being used for field crops but very few examples are observed for horticultural crops. So, in spite of many conventional technologies new inventions have been done for sensing yields of horticultural crops. This paper presents different review for examining yields that can be bifurcated in Proximal and Space Borne Sensors Sensing System. It gives us a better prediction about the yield of different crops prior to harvest. For yield sensing two methods i.e. Proximal sensing and Space borne sensors sensing system has been discussed in this review paper for crops like Capsicum, Potato, Carrot, Tomato, Melon, Apple, Pear etc. This review also demonstrated the need for more solutions to be explored in future for yield sensing of different crops. Proximal and space borne sensing system based yield sensing technology has been studied in different countries like Chile, Turkey, India, China, USA, UK etc. and their results has been discussed.