Abstract: We explored the effect of different combinations of inorganic salts hormones and fungus induction on resistance capability of Aquilaria sinensis and the relationship between resistance and discoloration length of wood core in early stage of agarwood. Two induction experiments bydifferent combination of 3 kinds of inorganic salts, 3 hormones and 3 fungi were carried out for ten-years-old trees of A. sinensis by uniform experimental design. The results showed that:(1)POD and SOD activity and MDA content firstly increased and then decreased; CAT activity reached the highest value at 1 day after induction, and then decreased; (2)The resistance capability under combinations of inorganic salts and fungus induction was greater than that of hormones and fungus. The capability in treatment 4(1.0% CaCl₂+0.5% FeSO₄+2.0% NaCl+Trichoderma atroviride:Fusarium solani:Lasiodiplodia theobromae(1:1:1)) from combinations of inorganic salts and fungus and treatment 2(0.01% Methyl Jasmonate+0.1% Ethephon+0.2% Sodium salicylate+Trichoderma atroviride:Fusarium solani:Lasiodiplodia theobromae(1:1:1)) from combinations of hormones and fungus was higher in the experiments respectively; (3)There was a significant positive correlation between the resistance capability of A. sinensis and the length of wood core discoloration; (4)Theoretically, 0.93% CaCl₂+0.53% FeSO₄+2.5% NaCl+Trichoderma atroviride:Fusarium solani:Lasiodiplodia theobromae(1:1:1) and 0.005% Methyl Jasmonate+0.006% Ethephon+0.2% Sodium salicylate+Trichoderma atroviride:Fusarium solani:Lasiodiplodia theobromae(1:1:1) was combination with the highest resistance ability respectively.