The number of words that could be posted on Weibo at a time depended on the content of the post and the rules of the platform. Normally, the length of a Weibo post on Weibo is 140 characters, but in some special cases, such as posting a long Weibo or using special symbols, the length of the Weibo may be different. In addition, the length of the post can also be adjusted. Please consult the customer service of sina for the specific method.