The work aims to build a set of assembled balcony decoration system solutions based on user scenarios. Aiming at the construction of an assembled balcony system, it was explored comprehensively and systematically from the aspects of its design method, concept, architecture, and system modules. It was concluded that the assembled balcony system was a complete system composed of four basic assembly systems, eight large-scale optional assembly systems, and three major loading systems. The assembled balcony system includes basic assembly systems, optional assembly systems and loading systems. The basic assembly systems include a top system, a wall system, a ground system and a balcony closure system. The optional systems include a housekeeping module, a drying module, a leisure module, a green planting module, an office module, a fitness module, a kitchen auxiliary storage module and a bedroom auxiliary storage module. The loading systems include an intelligent lighting system, an intelligent security system and an intelligent shading system. With the development of the carbon peaking and carbon neutrality goals, big data, artificial intelligence and new lifestyles, system solutions that feature standardization, industrialization, personalization and intelligence for multiple balcony living scenarios will have rapid growth.