This study is aimed at assessing vegetable market chain in Dugda Woreda, Oromia Region ojrnEthiol'ia(ocusing on tomato and onion products. Irrigated vegetable production is increasing withrnpop Illation grOlvth and changes in consumption habits in Ethiopia creating business 0pp0i'lunity Jorrnmany actors along the market chain, despite number oj production and marketing constraints.rnAnalysis oj marketing peljormance oj vegetable plays an important role in an ongoing or Juturernmarket development plan. This study aimed at analyzing the market chain of vegetable Jor DugdarnWoreda with the specific objectives of identifoing the key vegetable marketing aclOrs and channels:rnexamining market structure oj major actors: assessing the market peljormance Jar key vegetablernmarkeling aclors and channels by quantifoing costs and profit margins: and identifying keyrnproduction and marketing constraints and opportunities Jaced by smallholders. The data wasrngenerated by household survey using a pre-tested structured questionnaire, key in/ormanl interview,rnJocus group discussions, semi structured questionnaires and checklists. This was supplemented byrnsecondcu), data collected from different published and unpublished sources. The data analyzed usingrnSPSS version 20 and summarized info descriptive formals slich as frequ encies, percentages, meansrnand standard deviation. Besides, Structure, Conduct and Performance (SCP) model employed tornevaluate Ihe slructure and peljormance oj vegetable market.rnThe study finding shows that vegetable market chain actors are broadly classified into Ihree: inputrnsuppliers: direcl market actors (producers, brokers, Jarmer traders, wholesalers, relailers andrnconsllmers): and enablers (extension service providers & credit providers). Vegetable producers sellrntheir products to different market intermediaries andfinal consumers. About five vegetable marketingrnchannels were idenlified. The total amollnt oj vegetable that was transacted through these marketingrnchannels in 201-1115 was 32,010 quintals. Chunnel II was Jound to be the dominant lIlarkelingrnchannel in terms oj volume oj vegetable supply, where about 23,752 qllintals oj vegetable (74.2% ofrnthe total vegetable) was supplied to the market. Channel {II was the second dominant marketrnsupplier, where about 6,786 quintals oj vegetable (21.2%) supplied through this channel. The studyrnresult also shows that the total gross marketing margin was 30% with producer participation marginrnoj 70%. The markel intermediaries incurred different marketing costs such as packing, sorting,rntransportal ion, loading and unloading. Central wholesalers obtain relatively highest profit inrnchannel /I and 1/1, which amounted to Birr 204,827 and 58,675, respectively. The study resultrnsignifies that thefirst Jour largest volumes of vegetable purchased by traders (CR,) constilule 50% ofrnmarket share. which indicates the market structure Jor vegetable is strongly oligopolislic. OLSrnregression results also revealed that there are econamies oj scale Jor wholesalers at Meki market,rnwhich clearly indicates the presence oj barrier to entry/exit Jor wholesalers in the market.rnOpportlll1ilies idenlified Jor vegetable production include: existence oj groundwater, convenientrnagro-ecology and ideally appropriate for agro-processing induslries. On Ihe other hand, challengesrnrecognized for vegetable market chain includes: oligopolislic market structure, absence qf storagernJacililies, soil salinity, overutilizatioll oj inputs (fertilizers), increasing cost oj inputs, lack ofrnil1lproved seeds and chemicals (insecticides and jill7gicides), price fluc tuatian, and high markelrninvolvemenl oj brokers. Policy implications drawn from the study findings necessitate legalizing andrnsupporting actors in the local vegetable markets, creating access 10 accurate and regular nwrkelrninJorlllation and technical support to producers on crop diversification.rnKeywords: Vegerable, market chain, market margin, OrdinOlJI Least Square, challenges.