Abstract: A method for constructing kill chain based on space-based reconnaissance information to guide surface strikes is proposed to address the limitations of traditional reconnaissance methods in ensuring precise surface strikes under far sea combat conditions. Firstly, the basic definition of the kill chain in surface strikes under space-based guidance is clarified, and its general operational process of the kill chain is designed. Secondly, the kill chain model is established, and two types of performance evaluation indicators, namely strike capability and closure time, as well as their comprehensive evaluation methods, are proposed. Then, a construction algorithm for the kill chain is designed, it is easy to search for and to strike all the kill chain of each target. Te kill chain can be sorted out and output according to the performance index evaluation method. In the experimental verification, 45 types of kill chain results are generated based on a certain operational scenario, and the rationality of this method is verified.