Connected construction is a concept that combines all stages of construction and uses high-end technology to solve problems in the construction industry. Throughout the life cycle's planning, construction, and operation phases, each stage has a different stakeholder and role. The involvement of different stakeholders at each stage of connected construction is still a problem. The discrepancy between planning and output will be a consequence if the interaction between stakeholders at each stage is not properly connected. Several studies on stakeholder integration have been carried out using various methods but are still rarely found in the context of connected construction. So it is important to know the appropriate research method for stakeholder integration in connected construction. This study aims to identify the research methods used in stakeholder integration in connected construction, using determined 20 papers on the topic of stakeholder integration in the construction industry. The result of the study is the mapping of previous research based on the method used. This mapping will be useful for researchers to conduct the methodology of the research, especially on the topic of stakeholder integration in connected construction.