The invention discloses an efficient sugarcane slow release fertilizer capable of promoting sugar accumulation. The efficient sugarcane slow release fertilizer comprises the following components in parts by weight: sunflower oil, paraffin wax, calcium peroxide, nano-white carbon black, bagasse, furfural residue, edible starch residue, fructose, lentinan microspheres, active dry yeast powder, selenium-enriched nutrient energy elements, choline chloride, aloe gel, persimmon flavonoids, xanthan gum, polyethylene glycol, hydroxypropylcellulose, 200-300-mesh coconut shell activated carbon and the like. The slow release fertilizer for cultivating sugarcanes can be prepared by coating a fermentation main material with coated liquid capable of dynamically releasing nutrients, so that the slow release effect is good, the nutrients are rich, the fertilizer efficiency is stable, the action time of the fertilizer efficiency is long, the emergence rate and plant heights of the sugarcanes can be effectively increased, and the agricultural yield and sugar yield of the sugarcanes can be remarkably increased; and added exogenous choline chloride can be transported upwards along fiber tube bundles after being absorbed by the roots of the sugarcanes so as to promote the photosynthesis of the sugarcanes, so that the synthesis and accumulation of sugar in the sugarcanes is promoted, and the efficient cultivation of the sugarcanes is promoted.