The development of data technologies give birth to personalized service，which promotes the platforms to collect users’ data. There must be tension between users’ data collection and privacy protection. Researchers and legislators put forward relevant requirements for privacy and personal information protection in platform’s data collection. Based on privacy calculus theory and privacy paradox，this paper studies how users view privacy disclosure when using personalized service platform. By analyzing 1055 samples，this study finds that skilled Internet users have a high degree of privacy concerns，but the high degree of privacy concerns does not substantially affect their privacy disclosure，and the use habits and channel dependence significantly affect the actual online behavior of users.