The research aimed to estimate the productive and economic indicators of winter tomatoes in Sharkia Governorate, and the economic estimate of tomato losses. Estimating the economic effects of the loss and the causes of the loss of winter tomatoes during the production and marketing stages and proposals to reduce the loss. It became clear from the estimated production function that there is a direct relationship between the quantity of production of the winter tomato crop in tons, The amount of seeds, the amount of human labor, the amount of nitrogen fertilizer, the amount of phosphate fertilizer, the number of hours of mechanical work, the amount of irrigation water, the amount of pesticides, The total production loss amounted to about 2.17 tons, with a value of about 9,450.35 pounds, and the total marketing loss amounted to about 1.88 tons, with a value of about 8,187.40 pounds. The value of the qualitative loss amounted to about 5819.85 pounds. The total value of winter tomatoes wasted is approximately 23,457.60 pounds. With the economic estimation of winter tomato losses in the field study sample and then at the level of Sharkia Governorate; It was found that the total amount of losses at the sample level amounted to about 19.8 thousand tons. While at the level of the Sharkia Governorate, it amounted to about 146.1 thousand tons, and the wasted area amounted to about 8.5 thousand acres, with a value amounting to about 66,706.62 thousand pounds at the governorate level.