Investment is one of the main pillars in the implementation of developmental plans and is an important tool for achieving self-sufficiency, reducing unemployment and achieving the goals of developmental plans. It also help in improving the level of the living, by increasing investment in agriculture and non-agriculture, we are ensuring the achievement of many economic, social and environmental development objectives, the research aims to measure the efficiency of certain economic criteria and to examine the development of national and agricultural investments in Egypt during the period 2005-2018.The problem of research has been the inefficiency of investment in agriculture and its decline in relation to national investment, which hampers the role of agriculture in achieving developmental goals. the average value of national investment in Egypt during the period 2005-2018 was about 136.3 billion Egyptian pounds, the minimum investment level was 85.4 billion pounds in 2005, while the maximum investment value was 172.5 billion pounds in 2018, and the relative importance of agricultural investments ranged from 2.1% - 9.4% with an average of 5.3%, the relative importance of agricultural investments was lowest in 2005 at 2.1% of national investment and at a maximum of 9.4% in 2018, the results of the study showed that both total and agricultural investment were not efficient, so the study recommended that plans should be drawn up to boost the national economy and support the financing of projects to play their part in achieving developmental goals and thereby achieving sustainable developmental goals.