The invention discloses a household multi-SIM card management system. The system comprises an SIM card secret key route automatic configuration module, a multi-way SIM card short message and incoming call management module and a client terminal information encryption processing module. Corresponding secret key or encryption processing is carried out by employing secret keys generated by the SIM card secret key route automatic configuration module according to different users. The system is in support of multi-card multi-standby, and at most four pieces of equipment are supported. According to the system, the daily use demands of business people and families can be satisfied well; the system is unnecessarily carried, and short message prompting and incoming call prompting can be realized intelligently; through adoption of a local area network special encryption technology, the user information security is ensured, and the intrusion of hackers is prevented; and encrypted management is carried out on the users in the equipment, and therefore, the information privacy of personal users is ensured.