An analysis assistance device includes an estimator that estimates a distribution of measurement quality indicator data using a regression analysis by using a plurality of analysis condition data pieces provided to an analysis device and a plurality of measurement data pieces obtained by the analysis device based on the plurality of analysis condition data pieces, an analysis assistance information displayer that displays the distribution on a display, and a saver that saves an analysis condition data piece of a point of interest designated in the distribution in a storage device in response to a saving operation.