This Paper is intended to show Hongloumeng`s features and meanings as autobiographical novel. Hongloumeng has been known as Caoxueqin`s autobiographical novel since Hushi`s Hongloumenglunzheng(l92l). Including Hushi, Study tendency of Yupingbo, Zhouruchang, Pengqiyong, and Wushichang are called as Kaozheng school or Xinhongxue school. They focus their attention on the direct relations of author`s real experience with literary work`s details. This Paper also is fundamentally based on their studies. I, however, direct my attention toward descriptive and narrative features manifested in Hongloumeng. Above all, I maintain that autobiographical novel forms a flow in 18th century middle China. Including Wuiingzai`s Rulinwaishi, Shenfu`s Fushengliuji, and Xiajingqu`s Yesoupuyan, Caoxueqin`s Hongloumeng is one of very important autobiographical novels. I think that realistic autographical writings were changed into fictional autobiographical novels in this times. Hongloumeng as autobiographical novel reveals descriptive and narrative features and meanings such as the following. first, Hongloumeng is written through artistic treatments on field of author`s real experience. So, this work shows features mixed by realistic and fictional elements. second, present and past times overlapped in narrative world of this work. this character is illustrated in Jiabaoyu`s two selves which can be called old self and young self, present self and past self. Finally, I think that we can find mixture of confession and explanation of author or hero Jiabaoyu in narrative of this novel. Author begins to make a confession in the beginning of this work. But, ultimately Jiabaoyu who reflects self-portrait of author consistently defenses his justness, explains his conduct and selection in the narrative. In the end, This novel distinctly shows tendency of individualization and internalization, which also are caused by Hongloumeng`s features as autobiographical novel.