Abstract: In order to increase the explosion power ofmulti-component fuel mixture, a field experimental study is carried out on single ignition of a few dosage of ternary solid fuel mixture with unconfined volume dispersion, with optical and electrical testing methods. Anoptimized fuel mixture ratio is obtained for the test bomb. Experimentalresults show that the cloud dispersion effect of multi-component solid fuelmixture is better than trinitrotoluene's of the same mass. Overpressurewithin the explosion field of solid fuel mixture firstly decreases, then increases,and then decreases again with increase of distance, and the distributionof the overpressure field is similar. Explosion power of solid fuelmixture can be enhanced with a suitable increase of bomb density.