Programming language online learning platform is an important way to learn new programming knowledge. Futhermore, it is very important for improving the service quality of the platform to clarify the user requirement attributes of various functions in the platform. Using a variety of such research methods as Delphi method, Kano Model and Better- Worse index, the service connotation of the programming language online learning platform was clarified, and thereby the functional requirements service system of the programming language online learning platform with 5 dimensions and 26 functions was constructed, and the user demand attributes of the programming language online learning platform were scientifically classified.According to the user satisfaction index measured by the Better-Worse coefficient value and its four-quadrant graph, the 26 functional requirements of the programming language online learning platform was divided into expected functional requirements, attractive functional requirements, basic functional requirements, and no difference functional requirements. According to the characteristics of different functional attributes on user satisfaction, this paper proposes a differentiated service strategy to improve the user requirements of online programming language learning platform.