The invention relates to a business expansion project platform for drawing up a power supply scheme and computing construction cost. The platform comprises an information acquiring part, a data transmission part and a computing processing part, wherein the information acquiring part comprises a front-end processor 1, a front-end processor 2, an information acquiring terminal 1 and an information acquiring terminal 2, wherein the front-end processor 1 is connected with a grid PMS (power production management system), a consumption information acquiring system and a pipe network system, the front-end processor 2 is automatically connected with a grid GIS (geographic information system) and a distribution network, the information acquiring terminal 1 is connected with a grid GPS (global positioning system), and the information acquiring terminal 2 is connected with PAD; the data transmission part comprises an industrial Ethernet switch and a platform communication module connected with the industrial Ethernet switch; the computing processing part comprises a data processing and storage module connected with the platform communication module, a database, a project scheme automatic generation module, a project cost calculation module and a log and security control module. The business expansion project platform remarkably increases the business expansion and power connection speed and reduces the labor cost for drawing up the power supply scheme and computing the business expense.