The aim of this study is to identify how economic activities can be used to improve the management of the Wadi El Rayan protected area, and to find the relationship between economic activities and increase the income allocated to protected areas to spend on various management activities in light of the lack of available financial resources. On natural resources for sustainable development. In order to achieve this, the researchers designed a questionnaire form distributed to a sample of 70 employees (officials, environmental researchers, employees, accountants and legal specialists) in Wadi El Rayyan and the Environmental Affairs Agency at the Ministry of Environment. The study found that the change in management improvement (dependent variable) by 39.2% was due to economic activities (independent variable) at a level of significance of (0.05).The study reached a number of recommendations, the most important of which is: that the resources of protected areas should be spent on the development of protected areas and reduce dependence on the government budget. As well as work on providing a portfolio of natural reserves to benefit from the available resources, after approval by the Board of Directors of the EEAA for public auctions or application through the Investment and Participation Unit of the Ministry of Finance. And coordination with ministries, agencies and concerned bodies on investment projects that can be implemented in the reserves. As well as work on the development of eco-tourism programs within the reserves to achieve self-financing and sustainable.