Lightweight steel assembled structure has short construction cycle, seismic energy saving, and high recycling rate, but it also suffers from defects such as poor thermal inertness, many repeated thermal bridges, and poor vibration isolation performance. Taking 383 documents about lightweight steel assembled construction screened from CNKI database and 731 documents from Web of Science core ensemble as data sources, CiteSpace was used to visualize and analyze the issuance, research hotspots and development trends, which will provide reference for future related research. The current research status on the optimal design of the performance of typical assembled lightweight steel enclosure structures, including lightweight steel keel, lightweight steel lightweight concrete, and lightweight steel frame, is reviewed. Firstly, the characteristics, effects and improvement ideas of the optimal design of mechanical properties of assembled walls are analyzed from the perspectives of overall seismic performance, cladding panels and self-tapping screw connections, keel sections and web openings, thermal insulation materials and construction. After that, the methods and effects of optimizing the thermal performance of the wall are proposed from four aspects, namely, the addition of thermal insulation materials, thermal bridge blocking design, phase change energy storage application and joint sealing treatment. Finally, the optimal design methods for airborne sound insulation, structural vibration noise and vibration comfort of the envelope are described, and the research status and future development direction of multi-objective parallel optimization are summarized.