This paper provides a comprehensive review of the task planning methods for manned/unmanned system cooperative combat. It begins by introducing the research background and analyzing the problem from two aspects of the human-machine relationship within manned/unmanned systems and the task planning process. This analysis leads to the identification of five key technical areas: task understanding, task decomposition, task allocation, course of action generation, and plan evaluation. Each of these areas is then comprehensively reviewed, with a focus on the relevant research. Finally, the paper summarizes and analyzes the current research status of task planning for manned/unmanned systems cooperative combat as a whole, and provides the prospects for the future of this field.