With the development of the technology, more and more students use electronic dictionary to replace paper dictionary. Some students are in favor of the idea using electronic dictionary. They think it's very convenient to looking for the words. Thus, it can save much time for them. Meanwhile, the parents think the electronic dictionary is easy to carry. And also it is afforded by most families. However, the English teachers don't think so. They consider the electronic dictionary explain the word too simple. If the students want to learn English well, they should use paper dictionary, which give the students a detailed explanation. Every coin has two sides. We should use their advantage. When we learn English, we should use paper dictionary. For travelling, we maybe take an electronic dictionary.