The invention relates to a financial statement generation system and a method thereof, and the system comprises a data storage unit which is used for storing various data; a login management unit usedfor logging in an operator, and inputting data required by a report form into the data storage unit after the operator logs in a corresponding interface; and a data collection unit used for collecting data input by an operator and storing the data into the data storage unit. Compared with the prior art, the system has the advantages that the financial statement can be selectively provided based on the needs of enterprise operation and management only by generating the financial statement at the end of a month, and a basis is provided for improving the enterprise operation and management in time.