This paper uses the content analysis method to “code” the readers’ book review content of Dangdang’s history bestsellers, and summarizes the following five key factors affecting the bestselling of history books ：（1） pay attention to readers’reading interest and reading experience ；（2） thinking about recreation and reading psychology ；（3） pay attention to the reading needs of pragmatism and utilitarianism ；（4） highlight the individuation and diversification of historical writing ；（5） emphasize the topic selection planning and marketing promotion of books. On this basis, two thoughts are put forward: （1） from paying attention to the “content” of books to paying attention to the “service” embedded in the content of books;（2）from the book production of“author center” to the book production of “editing center”. It is hoped that it can create best sellers for publishing institutions, better grasp the book publishing market and put forward effective suggestions.