Abstract: The lunar soil in-situ utilization technologies are an important part in the technological system of the lunar in-situ resource utilization. The engineering application of related technologies will help the lunar exploration and the resource development in a self-sustained way. Based on the current state and the development trend of the lunar soil in-situ utilization technologies at home and abroad, the engineering route of the lunar soil in-situ utilization is outlined in this paper. In view of the problems and the difficulties in the recent engineering practices, some technical proposals and development thoughts for the in-situ oxygen production and the in-situ forming with the lunar soil are presented, to provide a guidance for the future lunar resources exploration and exploitations.