
The theory of sociology is as a form of understanding of good and bad human behavior. Like this study, in order to reach the research object that it is necessary to use the deepening of the literary sociology theory.This studytakes novel as object that aims to facilitate researcher doing on research by referring to indicator of the moral aspect which exist in the focus of the research in Dilan 1990 novel: (1) human relation with oneself and (2) human relation with other. This study is descriptive qualitative study. The subject of this study is Dilan 1990 novel by Pidi Baiq. This study is focused on issues relates to the moral aspect with theliterary sociology study. The data used is in the form of word and written sentence (Text) that exists in Dilan 1990 novel. Data research procedures are done through reading, coding, collecting, description, analysis, and data conclusion. The result shows that there are moral valuesin Dilan 1990 novel by Pidi Baiq relates to: (1) human relation with oneself which includes: responsibility and emotional, (2) human relation with other which includes: discipline, crime, love, and caring or empathy.Dilan 1990 novels will be considered only teenage novels that prioritize romance stories for some people who have not read them. From this acquaintanceship, Milea ca Dilan 1990 novels will be considered only teenage novels that prioritize romance stories for some people who have not read them. This book is about a flashback of Milea in 1990. Milea is a high school teenager who has moved from Jakarta to Bandung. Milea has life as well as a high school teenager in general. Everything changed when he met his new friend named Dilan.

The story rolled full of excitement and surprise. Dilan has every means to make himself happy.

From this acquaintanceship, Milea can see the figure of Dilan from a different side - not Dilan as a troublemaker at her school. Milea also had the opportunity to meet the unique Dilan family and get to know Mother Dilan more closely. The story idea presented by this novel is fairly simple namely the romance of high school kids.

But Pidi Baid makes the story more interesting with humorous and romantic conversations between the characters in the story.
