The aim of this study was to investigate the effectiveness of a Task-Based Learning programin developing MUST English majors' skill of translatingdocuments and their attitudes towards translation. One experimental group of 32 thirdyear English Majors participated in the study.This group was tested on document translation and attitudes towards translation prior to the study. After that, the TBL program was taught by the researcher to this group. At the end of the experiment, the study group was posttested on document translation and attitudes towards translation.Results of the document translation test indicated that the training program was effective in developing the skill of translating documents among MUST English majors. Besides, there was a statistically significant difference between the mean score of the pre and post administration of the attitudes questionnaire in favor of the post administration