Mission planning technology provides a vital technical support for intelligent munition swarms to successfully perform operational missions, accomplish cooperative operations, and promote the autonomy and intelligence of munition swarms. This paper summarizes the technical connotation and characteristics of cooperative mission planning technology of intelligent munition swarms and systematically reviews the development history and status of the technology from several perspectives, such as technology generation, project verification, theoretical methods, software/hardware environments, and verification methods. Then, according to task requirements of intelligent munition swarms for actual combat, the current technical challenges and the future research directions concerning the cooperative mission planning technology of munition swarms are discussed in terms of theoretical algorithms, autonomous and controllable software/hardware, and test platforms. Finally, some development suggestions on cooperative mission planning technology of intelligent munition swarms in China are given.