Abstract: Currently, existing literature reviews on smart home research tend to focus on innovation and analysis at the technological level; few researchers investigate smart home from the perspective of interaction design, which is also an important aspect for accomplishing the natural, convenient, comfortable, friendly and safety goals of smart home systems. To summarize the latest research outcomes and trends related to smart home interaction design, this study selected 55 relevant publications in the past five years from international high-impact human-computer interaction (HCI) conferences and journals, and reviewed them through a comprehensive analytical pipeline covering exploratory reading, literature encoding, topic modelling, literature clustering analysis, manual analysis, data dimensionality reduction, visualization, and correlation analysis. The proposed pipeline helped to clarify the research background and summarize the content of each literature. Based on the analytical and summative results, we further induced five interdependent research trends including interaction design focus, user behavior focus, data privacy and security, smart device focus, and design exploration, each exhibiting distinct characteristics. Finally, we systematically discussed and anticipated the multi-disciplinary integration mechanism and the user participatory mechanism of future smart home research from the HCI perspective.