The following paper researches into application of digital technology for explosives performance test, especially ballistic mortar test. The proposed approach provides a direct measurement of maximum throw angle of pendulum in ballistic mortar test. The measurement equipment for ballistic mortar (MEBM) is designed, produced, and applied in the defense industries in Vietnam. MEBM is developed and produced based on angle encoder, CPU S7 200, TD 200. With the new proposed approach, the measurement process, signal transfer, digital signal processing, data computing, and display are fully automatic. It overcomes the disadvantages of old approach, such as indirect measurement of throw angle, where measurement error depending on marker record, rule, and subjectivity of measurer. The testing and triggering detonator is integrated in MEBM.