The title of the official document can be up to 20 words. According to the public network, the maximum number of words in the title of official documents is 20, which is to ensure that the title is concise and clear, and can accurately summarize the theme of official documents. Too long a title may make it difficult for readers to understand and remember. Therefore, when writing official document titles, we should be as concise as possible, highlight key points and avoid using too many words and phrases. Official documents, namely official documents, also known as "official letters", come from the Han Ji written by Xun Yue in the Han Dynasty.