A community complex is a mixed-use commercial space providing comprehensive services and leisure for residents living within the radius of 2-5 km,whose major function is to meet the publics demands for shopping,dining,entertaining and other everyday activities.Owing to its accessibility and comprehension,community complex provides various attractions for family consumers of different ages.Its public open space may even boast as the "community living-room" because of the role it plays in the local social life,stimulating communication between different families,promoting the sense of community identity and so on.Consequently,there must be considerable connections between the vitality of a community complex and the attraction of its public open space for the family consumers.Based on the theories of consumer behavior and post occupancy evaluation,through case studies of 4 typical community complexes in different areas of Shanghai,we collected plentiful first-hand information on family consumersbehaviors,preferences and assessments on their using of those public open spaces.The methodologies applied in this research include on-site observation,trace recording,investigation questionnaire and random interview etc.Analyzing the data by EXCEL,we are aiming at the attraction factors of community complex on family consumers,such as the consumption choices or retail proportion,the spatial structure,the architectural form and other qualities.