A management method and management device for contacts in a terminal, and the terminal are provided. The terminal includes a first system and a second system, and the management method includes setting a data channel between the first system and the second system; permitting the first system to read contact information in the second system through the data channel when a current running system in the terminal is the first system; and prohibiting the second system from reading contact information in the first system through the data channel when the current running system in the terminal is the second system. The present disclosure ensures high-level security of contact information in a security system, realizes an interaction of contact information between an ordinary system and the security system, and improves user experience.
