The utilization of fish to produce healthy fish fillet and different materials with good nutritional and economic uses is a promising and an attractive business for both tilapia and catfish in Egypt. This article presents an analysis of the development of the international trade and fish consumption in Egypt, with calculation of )available for consumption, food gap, self-sufficiency, average per capita). In addition to measuring the marketing efficiency according to the sales methods and marketing channels for each of the tilapia and catfish by estimating the marketing margins and the distribution of consumer pounds. Finally, the by-products quantity expected to be obtained from both tilapia and catfish was calculated when these fish types process to fish fillet. The results showed that, the development of the quantity available for consumption reached the minimum in 2015 with a quantity of 2120.61 thousand tons, while the maximum amount was in 2016 by 2563, 00 thousand tons. The fish food gap and the fish self-sufficiency rate in Egypt fluctuated between increase and decrease between 2015 and 2020. As for the per capita consumption of fish, it reached about 16.80 kg/year as a maximum in 2019. Also, the marketing efficiency fluctuated between a maximum and a minimum during the study period, for both tilapia and catfish and recorded the maximum in 2019. The results showed that there are large quantities of by-products can be obtained from both tilapia and catfish in the case of good processing and exploitation of these fish types.