Abstract: La-Ni alloys are prepared by induction melting and ball milling,and Ni-rich La-Ni alloys are further prepared in situ by an acid treatment method. The hydrogenation performance of dibenzyltoluene catalyzed by La-Ni alloys prepared with different conditions is studied. The hydrogenation amount of dibenzyltoluene catalyzed by Ni-rich La-Ni alloys reaches 5.34%（mass concentration）at 280 ℃for 4 h,and finally reaches the theoretical maximum value after 20 h. The excellent catalytic hydrogenation activity of Ni-rich La-Ni alloys is mainly attributed to the mutual promotion between the efficient catalysis of Ni and the reversible hydrogen absorption and desorption ability of La-Ni alloys.