Considering the English Language as a Lingua Franca and the increase of its language learners all around the world, new methods are entering the field of English language teaching (Eda Kaypak, Deniz Ortactepe, 2014). One of these methods that have become very popular in recent years is the use of Corpus linguistics in English language teaching. Due to the weakness of most Iranian students in writing skills in this language, this study examines students' attitudes toward using Coca corpus to improve their writing skills, as well as the strengths and weaknesses of this program as an educational tool in writing skills in online education. Statistical data obtained from this study show that students have a positive attitude towards the use of this program and the use of this program has increased students' confidence in the writing skills of this language.