Abstract: At present, the penetration rate of smart home appliances in daily life is increasing. While bringing convenience to people, their security is also increasingly concerned. Starting from the security status quo of smart home appliances, combs the security standards related to smart home appliances at home and abroad, analyzes the security requirements of smart home appliances, takes typical application scenario as an example, puts forward the basic process of security threat analysis, and expounds the construction idea of threat model in detail. It aims to further strengthen the safety research and development level of smart home appliances in China and promote the development of the industry with higher quality.

Key words: Smart home appliances, Security standards, Application scenario, Threat model