The invention discloses a novel rubber tree compound fertilizer, which comprises the following components in parts by mass: 40-60 parts of straw, 6-15 parts of superphosphate, 15-25 parts of animal feces, 6-10 parts of potassium sulfate, 12-20 parts of manganese sulfate, 2-4 parts of chitosan, 4-6 parts of seaweed, 4-8 parts of potassium dihydrogen phosphate, 10-20 parts of soybean meal, 2-4 partsof biological enzyme, and 2-4 parts of an organic fertilizer starter. The compound fertilizer of the invention can greatly increase the amount of the rubber produced by the rubber tree, has a long-lasting effect, and has a certain water retention function.