For promoting application of intelligence service robots in family security field, its core technology was studied. Intelligent robots at home in the security services shall have the core technology of the main noise source identification technology, including: face recognition technology and image recognition technology, speech recognition technology, sound grain identification technology, real-time online network function, to find out the hidden dangers. On the basis of TMI-118 type intelligent robots at home and intelligent surveillance system, the application of family security is introduced, and the application of service robots in family technical difficulties. This study can promote intelligent robots at home in the security services to provide reference for the core technology.