Mankind has always been faced a problem called ‘Limitation of Resources and Production Facilities’ in a way that even now and in spite of the increased development of sciences and techniques, this limitation not only exists, but also due to the ever-increasing growth of the population on one hand and the destruction of the environment on the other hand, it has even been intensified. At the moment, higher productivity and efficiency and efficient use of the existing facilities is practically more than a choice and has become a necessity. The objective of this article is to measure the efficiency of greenhouses in Guilan province as sample of Hyrcanian zone. The present research is the survey type and required data were collected through questionnaires from 60 greenhouses in the province in 2009. Data envelopment analysis (DEA) was the method that used for measuring the efficiency of greenhouses and rating them. Results showed that among 60 greenhouses, 18 were efficient and on the efficiency frontier. It is noteworthy that the mean efficiency of this industry should be at least 75.30%.
