Continuing Education is the main target market for most DE institutions.However the DE system targeting continuing education for adults is different from traditional DE.Nowadays DE is expected to adopt innovative teaching and learning model for special need of adult students.So DE has to bring new experience on learning by ICT to adult students.Instructional design is the most important process for DE program.Instructional design should focus on learner analysis,resource analysis,learning objective design,learning content design,learning activity design,media solution design,assessment design and learning support design.