It is a research about The Four Great novels in late Ching Dynasty, to discuss the intentions of the writers, the background of the era, structure and narrative, characters, readers and the thought of the novels. The intentions of the writers were strong and everyone of them had his own specialty. There were so many wars in late Ching Dynasty, the politics was disorder and the culture was continued to change from the old one to the new one. The disorder situation effected the novels. Transporting foreign novels to China and printing the novels on newspapers made the Four Great novels got change. It changed the structure and narrative of the novels. The readers were very important to the novels and the relations among the readers,writers and works got change because of printing the novels on newspapers. The intention of the writers were strong that it made the novels more thoughtful and showed them by the way of blaming and exposing the crimes. This is not only a research about the forms but also the thought of the novels that it tries to offer a more complete observation of the Four Great novels.