We investigate the neutron induced reactions on gallium sample, and its experimental neutron leakage spectra at the neutron incident energy of 14.8 MeV are comparedwith the Talys1.6[1] calculated results at 60? and120?. In the Talys code, the neutron-induced reactionis divided in three physical processes, e.g., direct, preequilibriumand compound nucleus reactions. Calculatedtotal neutron leakage energy spectrum and thecontributions from three processes are shown in Fig. 1(a). Natural Ga (60.11% 69Ga and 39.89% 71Ga) sampleswere used in the plots. The calculated total crosssection shows three characteristic features, an elasticpeak, an inelastic peak and a broad bump in the lowenergy side. The elastic and inelastic peaks are generatedby the direct process. The broad bump at thelow energy is dominated by the compound nucleus process.