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为了提高爆炸场电子设备抗电磁干扰能力，对炸药爆炸产生的电磁辐射特性进行研究，设计一套基于超宽带无源全向天线和短波无源全向天线的电磁辐射测量装置，设置8个测试点进行60 kg TNT爆炸产生的电磁辐射测量实验和数据分析。结果表明，炸药爆炸产生的电磁辐射可持续至爆炸后600 ms，爆炸产生的电磁辐射信号最强烈的时段为爆炸后80~110 ms，爆炸产生的电磁辐射信号频率主要集中在100 MHz以下，其中50 MHz以下的低频段能量分布最为明显，爆心距离对电磁信号的频谱分布有明显影响，不同方向的电磁辐射频率分布不一致。爆炸产生的电磁辐射强度范围主要在64.33~348.25 V·m-1，电磁辐射强度随爆心距离增大而递减，且递减幅度较大，不同方向的测试点测得的电磁辐射强度也有一定差距，相差范围在11.1%~17.7%。“,”In order to improve the anti‑electromagnetic interference capability of the electronic equipment on blast field， the characteristics of electromagnetic radiation generated by high explosive were studied. An electromagnetic radiation measurement device based on ultra‑wideband omnidirectional antenna and shortwave omnidirectional antenna was designed while 8 test points were set up for electromagnetic radiation measurement of 60 kg TNT explosion. The experimental results showthat the electromagnetic radiation signals generated by TNT explosion last up to 600 ms after the explosion， the most intense period of electromagnetic radiation signal produced by TNT explosion is from 80 ms to 110 ms after the explosion. The frequency of the electromagnetic radiation signals generated by the explosion is mainly concentrated below 100 MHz， where the energy distribution in the low frequency band which below 50 MHz is the most obvious. The distance of the center of explosion hasa significant effect on the spectrum distribution of electromagnetic signals， and the frequency distribution of electromagnetic radiation in different directions was inconsistent. The electromagnetic radiation intensity generated by TNT explosion mainly ranges from 64.33 V·m-1 to 348.25 V·m-1， and the electromagnetic radiation intensity decreased largely with the increase of detonation distance. The electromagnetic radiation intensity measured by test points in different directions also hasa certain gap， and the difference ranges from 11.1% to 17.7%.