Abstract:Through using qualitative research methods combined by longitudinal study, content analysis and indepth interviews on the three macro government policy making processes in internet of things (IOT) industry in China, we have the following results. Firstly, the macro policy making process is composed by several incremental policy making phases with the foundations of microlevel policy tools formed and implemented during the interactions. Secondly, governments use information acquisition mechanism, action coordination mechanism, and commitment mechanism to manage uncertainties caused by the lack of information and dependence on others’ resources. Therefore, this study offers new theoretical and empirical insights into policy making processes and uncertainty management. Theoretically, it advances with a micro perspective to study the macro policy making process, which distinguishes the direct influences of microlevel policy tools provided by governments, and furthermore, enlarges the research contents about uncertainty management from governments.