Along with the strong development of the ongoing fourth industrial revolution, automatic translation software also plays a very important role in helping people get closer together without being hindered by language. Google Translate software is one of the early software and is gradually improving itself. The birth of this software has helped people who do not know each other's languages to communicate and read documents to get closer. However, the correct translation is still a problem due to many reasons. In order to clarify grammatical errors when using google translate software to translate from English to Vietnamese, the author will conduct a study on the situation in economic contracts through 100 English contracts collected from foreign companies. cooperation between vnguowif Vietnam and foreigners. The purpose of this study is to point out common mistakes and suggest ways to prevent students from using the software. Besides, it also helps software developers have a scientific basis to perfect it in the future.