The research aims, in general, to shed light on the productive and economic efficiency within the goat fattening sector in North Sinai Governorate Egypt. he results concluded that the optimal weight for production was about 56, 50.2, 47.3 kg per head within the three categories, respectively, and the bulk of the profits was about 76.4, 65.2, 61.0 kg per head within the three holding categories in the same order, which indicates the existence of lost income. per head amounted to about 431.8, 280.2, 212.6 LE per head within the three possession categories in the study sample in North Sinai Governorate during the 2021 fattening season. It was also found that the economic efficiency of goat fattening farms reached its lowest value of about 0.84 LE, within the farms of the first possession category (less than 5 heads), while its maximum value was about 1.12 LE, for the farms of the third possession category (10 heads or more). The research stressed the need to expand the size of the animal possession of the number of goats, as the results indicated that the net yield of the first category of goats amounted to about 515.8 LE, while in the third category it amounted to about 728.6 LE, and also to increase the used quantities of the production elements combined and re-mix them with each other to achieve utilization It is optimal, as the total elasticity coefficient was about 1.21 for the goat fattening sector, and the actual weight gain was close to the optimal weight within the farms of the first holding category.