The purpose of in conducting internship at Informatics Departement is to apply and develop practical knowledge of student in a company. Informatics department has already developed an intership information system. But, there is no data integration procedure in the exiting system. The same data has to be entered more than once. The proposed system acommodates the requirement of the department about data integration. The new internship system is set online so that t can be accessed anytime and anywhere. The analysis and design system is conducted using Unified Modeling Language and produces use case diagram, activity diagrams, class diagram and state diagram. Keywords Unified Modeling Language, Kerja Praktek, Use Case Diagram, Class Diagram