Aiming at the fact that the types of radar jamming shell become more and more diversiform and the short of the cost-effectiveness evaluation theory, modeling the cost-effectiveness based on data envelopment analysis (DEA) by calculating the data of decision making units (DMU), educe the adjustment of the inefficient DMU’s input indexes, and analyze the return to scale of output indexes. The result shows that the evaluation model is scientific and logical, which will give reference for the reasonable use of the radar jamming shell.