The invention discloses a query display method for stocks in a designated region based on an electronic map. The method comprises the steps that geographical location information of one or more listed companies is acquired and converted into corresponding electronic map coordinates, and the listed companies and the electronic map coordinates thereof are stored into a listed company geographical coordinate base; a stock query instruction is received, wherein the stock query instruction at least comprises range information of the designated geographical region; the designated geographical region and a contour point coordinate base of the designated geographical region are generated according to the range information of the designated geographical region; the listed companies in the designated geographical region are screened out according to the contour point coordinate base of the designated geographical region and the listed company geographical coordinate base; and positioning points of the listed companies in the designated geographical region are displayed on the electronic map. Through the method, the positioning points of the listed companies in the region expected to be checked and stock information of the listed companies can be displayed in the electronic map according to the query instruction.