Abstract: An investigation on magnetic properties of explosive consolidating amorphous powder is peiformed. The results indicate as follow:The consolidated specimen has weak magnetic properties such as low Br/Bs and μ_m, not easy to get saturation magnetization and high coercivity. The magnetic properties are raised obviously after short time annealing at 380℃ or 400℃. it can cause crystlization and magnetic retreat if annealing time is longer and temperature is higher. 400℃×20min and quenching by water is the best annealing process.