The invention relates to a production method of a rice biological carbon coated controlled-release fertilizer, and belongs to the field of controlled-release fertilizer preparation. The method comprises the following steps that firstly, rice straws are taken and cut; the cut rice straws are placed in a sodium chloride solution to be soaked, are taken out, exposed and carbonized and are mixed with sterilized chicken manure; after heating is performed, ethyl acetate is added; the temperature is lowered; wasted illegal cooking oil is slowly spread on the mixture; the mixture is mixed with potassium phosphate and is dried in a baking oven. The production method has the beneficial effects that the fertilizer application efficiency is high and is improved by 10 to 15 percent; the preparation steps are simple; the required cost is low.