This paper describes the thin-layer flexible explosive tapes made fro a micron or submicron explosive particles.The advantages of the tape are:small critical thickness,using little explosive,high detonation velocity,high initiating ability,small destructibility on neighbouring instruments,etc. Experimental results obtained for detonation properties of the tape are as follow: Detonation velocity:8030m/s(0.04—0.06 in thickness) Critical thickness:30μm(2mm in width) Turning ability for detonation propagation:≥135^。 Initiating ability: Thin-layer explosive tape can reliably initiate PETN/wax 95/5 pellets.