Agricultural sector has an important role in national income; Iran has special features such as topography, climate and fertilized lands for producing agricultural crops, As you know agriculture has an important role in Iran'income. Despite these advantages, there are some problems in the market of agriculture productions. One of the most important one is the large difference between the farm and retail prices, on the other hand the marketing marginal. There is the marketing margin in all countries even more than Iran; But we should consider that in improved countries this big difference in cost is related to packaging, grading, traortation and etc. In improving countries as Iran, this difference appears along unsuitable marketing and this problem cause a big deficiency in marketing system. On the other hand, in developing countries, marketing agents receive the supernormal profit more than all opportunity costs which cause inefficiency in marketing system. The aim of this research is to measuring the marketing margin, share of marketing agents in final price, marketing efficiency and determining the factors affecting the marketing margin of grape, raisin and other processed products and also reaching the main reasons of grap's productions marketing marginals dried nuts and other productions in malayer city. Our research method is documentary and survey and research tool is the structured questionnaire which designed according to the literature review and pre-test study. By using the cluster sampling, sample size included 376 farmers, 14 wholesalers, 60 retailers and 22 packing factory in malayer city. All these samples selected by sudden cluster sampling. Analyzing of these datas is based on relative formulas and according to marketing web analyzing. In order to evaluate the factors affecting the marketing margin, we used Chi-squarmodels . The results show that,Based on every kilogram, the packing and traortation have the most shares of marketing costs. Furthermore, in the shorter marketing channels, the share of farmers in final price increases. In addition, the net revenue of farmers in raisin and processed grape sales is more than fresh grape.marketing marginal is common and as just the marketing, traortation and packaging, some how, done by marketing so high marketing marginal seems unreasonable in comparison with provided services. More ever, retailer’s margin in our study area is more than wholesales margin. Figuring the efficiency of studied ways determined that most of the marketing units don’t have suitable and enough efficiency, and the malfunctions in ways that have major roles in marketing are crystal clear. The main reason of this deficiency is in ways which we have active factories, Price inefficiency and some howtechanical inefficiency clear. Evaluation of effective features on marketing marginal shows that the kind of produced productions, producing area, retail price, other marketing agent sales price and marketing costs are parts of effective features on our were marketing margin. Keywords: marketing margin, marketing efficiency, grapes, raisin, Malayer city