The study aims to identify the current situation of small and micro enterprise development in North Sinai Governorate. The results show that the number of micro projects funded by the Enterprise Development Authority in North Sinai Governorate during (2005-2021) was about 8,650 projects, and the number of small projects financed by The Enterprise Development Agency approximately 1,840 projects, and the value of microenterprise loans financed by the Enterprise Development Agency amounted to approximately 55.05 million pounds, and the value of small enterprise loans financed by the Enterprise Development Authority amounted to approximately 127.1 million pounds. By studying the economic efficiency of microenterprises operating within the sheep fattening activity with a sample The study in North Sinai Governorate during the 2022 fattening season showed that the cost-return ratio reached about 1.32, which indicates that the return on the pound invested in the project reached about 31.65%. The results also indicate that the project's profit margin reached about 24.02%, and the relative profitability factor reached about 64.26%. The economic efficiency of the project amounted to about 0.96 pounds, meaning that the pound spent on fixed and variable production factors achieves an added value of about 0.96 pounds, at the level of the total sample projects, during the 2022 fattening season. The study recommends increasing the expansion of sheep fattening projects as it achieves Great economic return and low investment cost within a short period of time compared to other projects.