An embodiment relates to a polygenic risk score visualization method. The method includes confirming whether input genotype data matches prestored genetic variation risk data and mapping genes and genetic variants based on the genotype data, calculating a polygenic risk score, attributed values, and variant contribution scores for the genetic variants based on a plurality of preset algorithms, and providing visualization by visualizing gene contribution scores for each gene at a population level, attributed values for each gene at an individual level, and variant contribution scores for each gene at an individual level based on the attributed values and the variant contribution scores.