A method for displaying navigation routes, characterized in that the method comprises: receiving, from a navigation server, at least two navigation routes from a navigation starting point to a navigation destination; determining a current navigation route from the navigation routes according to selection by a user, and assigning remaining routes as backup navigation routes; and displaying, in a navigation map, the current navigation route in a first mode and displaying the backup navigation routes in a second mode different from the first mode; characterized in that the method further comprises: blanking, in the navigation map, all the backup navigation routes if congestion avoidance information sent by the navigation server is received; displaying a congestion avoidance route included in the congestion avoidance information in the first mode, and adjusting the current navigation route to be displayed in the second mode, the first mode having higher brightness than the second mode; acquiring time difference information between estimated arrival time through the congestion avoidance route and estimated arrival time through the current navigation route, and displaying, in the navigation map, the time difference information at a set display position associated with the congestion avoidance route; and popping up a prompt widget for switching the navigation route at the set display position of the navigation map, to implement an operation of switching the congestion avoidance route to a new current navigation route according to selection on the prompt widget by the user. receiving, from a navigation server, at least two navigation routes from a navigation starting point to a navigation destination; determining a current navigation route from the navigation routes according to selection by a user, and assigning remaining routes as backup navigation routes; and displaying, in a navigation map, the current navigation route in a first mode and displaying the backup navigation routes in a second mode different from the first mode; characterized in that the method further comprises: blanking, in the navigation map, all the backup navigation routes if congestion avoidance information sent by the navigation server is received; displaying a congestion avoidance route included in the congestion avoidance information in the first mode, and adjusting the current navigation route to be displayed in the second mode, the first mode having higher brightness than the second mode; acquiring time difference information between estimated arrival time through the congestion avoidance route and estimated arrival time through the current navigation route, and displaying, in the navigation map, the time difference information at a set display position associated with the congestion avoidance route; and popping up a prompt widget for switching the navigation route at the set display position of the navigation map, to implement an operation of switching the congestion avoidance route to a new current navigation route according to selection on the prompt widget by the user. blanking, in the navigation map, all the backup navigation routes if congestion avoidance information sent by the navigation server is received; displaying a congestion avoidance route included in the congestion avoidance information in the first mode, and adjusting the current navigation route to be displayed in the second mode, the first mode having higher brightness than the second mode; acquiring time difference information between estimated arrival time through the congestion avoidance route and estimated arrival time through the current navigation route, and displaying, in the navigation map, the time difference information at a set display position associated with the congestion avoidance route; and popping up a prompt widget for switching the navigation route at the set display position of the navigation map, to implement an operation of switching the congestion avoidance route to a new current navigation route according to selection on the prompt widget by the user.