Method and system for constructing enterprise portrait based on invoicing activity

The invention discloses a method and a system for constructing an enterprise portrait based on invoicing activity. The method comprises the following steps: acquiring invoice processing data and invoicing behavior processing data; determining an industry attribute code and a portrait period of an industry to which the to-be-portrayed enterprise belongs; selecting invoice processing data according to the industry attribute code, and grouping the invoice processing data according to enterprise identification information to obtain all enterprise identification information of the industry to which the to-be-portrayed enterprise belongs; screening the invoicing behavior processing data according to all enterprise identification information to obtain industry invoicing behavior summary data; determining a monthly average invoicing sheet number interval corresponding to each activity label according to the industry invoicing behavior summary data; and determining a monthly average invoicing sheet number of the to-be