Colored oily fertilizer anticaking agent prepared from organic pigment and use thereof

The invention relates to a colored oily fertilizer anticaking agent prepared from an organic pigment and a use thereof. The colored oily fertilizer anticaking agent comprises, by mass, 0.5-2% of everbright fast red, everbright fast yellow G, phthalocyanine blue, phthalocyanine green or permanent heliotrope purple and 99.5-98% of an oily anticaking agent. The colored oily fertilizer anticaking agent is prepared through grinding and uniform mixing through a horizontal mill. The colored oily fertilizer anticaking agent is used for fertilizer coating. Through the colored oily fertilizer anticaking agent, the fertilizer produces corresponding red, yellow, blue, green or purple color. According to fertilizer products with different colors, the oily fertilizer anticaking agents with corresponding red, yellow, blue, green and purple color are provided so that interior and exterior of the fertilizer have the same color, color difference is avoided, decorative patterns are avoided, a masking capacity is good, a pump color is obtained, a bright and pure color is obtained, temperature and heat resistance is obtained, color fading is prevented and the color is not changed. The colored oily fertilizer anticaking agent can be used as a fertilizer type distinguishing and anti-counterfeiting label, a use cost is low and anticaking performances are good.