The research aimed mainly to study the efficiency of agricultural investment in financing agricultural production in Egypt, by studying the development of loans granted by the Egyptian Agricultural Bank for agricultural activities according to the deadlines and the number of dealers, and measuring the impact of loans granted by the agricultural bank on agricultural production, the development of agricultural investments and their importance with respect to national investments And determining the important factors affecting the factors affecting agricultural investments, measuring the efficiency of agricultural investment, and measuring the role of agricultural investment in the growth of the agricultural sector using the Harrod Dumar model in Egypt during the period (2005-2019). Extending the research in achieving the previous goals on the methods of descriptive and quantitative analysis, and the use of criteria for measuring the efficiency of agricultural investment in Egypt, and the Harrod-Dumar model, multiple regression analysis and progressive multiple gradient regression were used. The necessary data were relied on from published and unpublished data that was possible Obtaining it from the annual bulletins of the Ministry of Agriculture and Land Reclamation, the Ministry of Planning, the Information and Decision Support Center, the Central Bank of Egypt, and the Principal Bank for Development and Credit. The most important findings of the research: with a study of the effect of loans granted by the agricultural bank on agricultural production, it became clear that there is a direct correlation between loans granted by the agricultural bank and agricultural income, as it turned out that the most economic variables affecting the private agricultural investment during the period (2005- 2019) are agricultural loans, agricultural gross domestic product, average agricultural wages in the current year as it turns out that all of them agree with the economic logic, and by estimating the rate of growth in the total agricultural sector it turned out to be between a minimum of about -5.1 in 2011, and a maximum of About 5.4 in 2019, With an average engineering value of about 0.04 during the study period. By measuring the indicators of agricultural investment efficiency, the rate of agricultural investment, or the return on it, or the multiples of agricultural investment, the settlement factor and the capital intensification factor, all of which are determined to prove the efficiency of agricultural investment.