Tomato has significant economic importance in Ethiopia. The study was conducted in 2019 in twornkebeles(Godino and Denkaka) located in East Shewa Zone of Oromia National Regional State,rnEthiopia, located southeast of Addis Ababa. The Objective of the study is to examine the handlingrnpractices of tomato along supply chain, to identify the constraints of Postharvest losses ofrntomatoes along supply chain and to estimate the value of tomato losses at different stage the inrnthe study area. Purposive and Multiple stage sampling technique were employed to samplernrepresentative farmers and tradersâ€™respondents(N=222).Data was gathered throughrnquestionnaire, observations, key informant interview and focus group discussion. Data werernanalyzed using descriptive and tobit stata. Chi2(0.89) the age, marital status, level of education,rnwashing and cleaning, family size, experience in farming, mode of transportion,sorting andrngrading, loading and unloading, training, packing by carton and marketing information highlyrnpositively significant affect tomato post harvest management practices at farm level at p-valern0.000 or 99%. The total postharvest loss of tomato was estimated to be about 16.82% at the farmrnlevel.It can be concluded that significant amount of tomato loss occurred in the supply chainrnwhich is mainly attributed to poor postharvest handling practices. Based on the findings of thisrnstudy it is hereby recommended that postharvest technology should support tomato farmers asrnwell tomato traders for this reason, both sector agricultural and trade an industry work inrncollaborate to provide training on post-harvest handling practices in order to increase farmerâ€™rnand tradersâ€™ incomes and minimize tomatoes wastages in the study area.rnKeywords: Tomato, Postharvest handling practices, Post-harvest losses, farmers, Traders,