In this paper examine the marketing efficiency, marketing cost, market margin, price spread and marketing constraints in Sultanpur district of Uttar Pradesh. A multistage stratified purposive cum random sampling technique was applied for the selection of district, block, villages and respondents. Total 100 growers were selected randomly through proportionate allocation method in the population during 2021-22. The primary data were collected through survey schedule with the help of personal interviews. The objectives were achieved by using shephered's formula for marketing efficiency and Garrett ranking technique for the identify the major marketing constraints. There are three types of marketing channels were observed in cucumber marketing i.e., Channel-I (producer → consumer), Channel-II (producer → retailer → consumer) and Channel-III (producer → wholesaler → retailer → consumer). Overall maximum produce of cucumber was sold by different group of farms through channel-III. Moreover, cucumber growers were also faced different types of marketing constraints. Major three marketing constraints faced by the growers were perishability nature of commodity, lack of storage facilities and grading problems, respectively. Suggestions of cucumber farmers to overcome these constraints are storage facilities in mandi should be provided to the farmers for their perishable products and entrusting government representatives with marketing duties in exchange for a fair fee.