为解决多平台协同数据融合问题，采用基于D-S 证据理论的数据融合方法，分析了该理论在多平台协同数据融合中的应用原理，并将此方法运用于舰船类型的识别。通过MATLAB 仿真计算对D-S 方法在多平台协同数据融合和单平台数据融合中的应用进行了比较，验证了该理论在多平台协同数据融合中的有效性和实用性。Abstract: A method of data fusion based on D-S evidential theory is applied toresolve cooperative multi-platform data fusion problems,The basic theory isanalyzied in application and this method is applied to cooperative multi-platformdata fusion for target recognition of warship . The application of D-S methodin cooperative multi-platform data fusion is compared with that in singleplatform data fusion by MATLAB simulative computation, the results indicate thatthe theory is effective and practicable.Keywords:D-S evidential theory, Multi-platform, Cooperative data fusion