The invention discloses a two-dimensional visualized demonstration system for smart cities. The two-dimensional visualized demonstration system comprises a basic map demonstration module and an online plotting module. The basic map demonstration module is used for browsing two-dimensional basic geographic information and demonstrating dynamic city information in real time; the online plotting module is used for demonstrating online map making service. The basic map demonstration module comprises a basic information display unit, a population four-map information display unit, a real-time dynamic information display unit, an analysis result overlaying display unit, a historical dynamic information display unit, a two-dimensional browsing control unit, a map layer control unit, a map interactive making unit, a map measuring unit and a street scene linkage unit. The two-dimensional visualized demonstration system has the advantages that the two-dimensional visualized demonstration system has comprehensive functions, the two-dimensional basic geographic information and the dynamic city information of the smart cities can be quickly demonstrated, and basic maps, industrial maps, dynamic information, thematic maps, public service maps and freely customized maps can be vividly and conveniently plotted in an online manner.