The present invention discloses a citrus reticulata blanco compound fertilizer and a production method thereof, wherein the nutrients (the representation method refers to the GB18877-2009 organic-inorganic compound fertilizer national standard) comprise, by weight, more than or equal to 29% of total nutrient (N+P2O5+K2O), more than or equal to 20% of an organic fertilizer, 5-10% of compound amino acids, 0.1-0.5% of medium elements, 0.1-0.3% of trace elements, and 5-15% of fly ash. According to the present invention, the citrus reticulata blanco compound fertilizer is prepared by carrying out pre-treatment, granulation and magnetization, such that nitrogen, phosphorus and potassium required by citrus reticulata blanco growth can be provided, and the organic matters are rich; and with the magnetization treatment, the soil malnutrition caused by continuous cultivation can be improved, the physical properties of the soil can be effectively improved, nutrient absorption of crops can be promoted, and the citrus reticulata blanco compound fertilizer further has effects of nitrogen fixation, nitrogen fertilizer utilization rate, per unit area yield improving, and significant economic benefits.