In the Tunguavita experimental farm of Universidad Pedagogica y Tecnologica de Colombia there is a 10 years old variety Rubidoux peach crop with 1500 plants in 4 has which has yield fruit loss that increases every year. Because of this situation the research group CERES conducted a study to estimate the loss of peach during the harvest of 2013 and they could determine its percentages at harvesting, as well as the identification of the principal causes. The study ended with the estimation in market prices of the loss of the fruit harvest. This was the reason to make the tracking from the first day of the harvest until it ended through 6 weeks. A precise methodology with the selection of a sample (150 trees) was established, and a system of fruit harvesting was planned describing the methods, times and movements of harvesters, the fruit harvesting, the manipulations and the handling of the fruit, and the movements of the harvesters in the crops (Montavez, 2003). Each day of harvesting data was taken which was later organized, analyzed and discussed. As a result, it was found that loss of the fruit during harvesting was about 14.1%, which means 13.510 kg while harvested fruit corresponds to 94.480 kg with an average yield of 23.87 tons per ha. The causes that led to the losses were: inadequate manipulation, incidence of plagues and diseases, birds peck, and overripe fruit. All this aspects take to find fruit with physical, mechanical and physiological damage.