Effect　of　thermal　annealing　on　the　magnetization　reversal　behavior　of　alpha-Fe/Nd2Fe14B　alloys　was　investigated.　A　drastic　increase　of　the　remanence　M-r　from　0.67　up　to　0.87　T　and　remanence　ratio　M-r/M-s　from　0.66　up　to　0.76,　respectively,　was　observed　in　the　alpha-Fe/Nd2Fe14B　alloys　annealed　at　610　degrees　C　as　compared　with　the　as-quenched　sample.　Whereas　the　further　annealing　at　680　degrees　C　resulted　in　a　strong　increase　of　the　corecivity　H-c　as　high　as　491　kA/m　but　a　slight　decrease　in　M-r.　The　analysis　result　of　the　magnetization　reversal　behavior　showed　that　the　maximum　value　of　the　integrated　recoil　loop　area　about　1.58　kJ/m(3)　was　obtained　in　the　alpha-Fe/Nd2Fe14B　alloys　at　the　annealing　temperature　of　610　degrees　C,　significantly　lower　than　other　annealed　samples.　This　indicated　a　significant　advantage　for　the　application　of　this　material　as　permanent　magnets　in　electrical　machines　and　generators　due　to　a　low　energy　loss.