the purpose of this study was to investigate the impact of blended learning and multimedia softwares on iranian efl students vocabulary learning. in addition, the present study tried to examine the extent to which multimedia softwares can be applied into efl classes in iran. it also attempted to find out students attitudes toward using these softwares. to this end, 87 iranian efl learners at elementary level of language proficiency were assigned to three groups: the experimental, control, and constant groups. to be more cautious about the homogeneity of the experimental and control groups a vocabulary test was administered before the experiment. the experimental group received instructions through multimedia softwares, the control group received traditional instructions, and the constant group used worksheets prepared by their language school. the data were collected through a vocabulary posttest, a questionnaire, and classroom observations. the results indicated the great level of disparity between the two groups of learners regarding their acquisition of new vocabulary - in other words, multimedia softwares had positive effect on students vocabulary learning. it was also found that participants generally had a positive attitude toward technology. in addition, learning with technology also showed positive activity engagement. based on the current study, suggestions were made on how multimedia softwares can be adopted and incorporated more effectively in iranian efl classes.