Abstract: In the era of "Internet+", information technology such as big data and cloud computing is widely used in enterprise management, which makes the content and efficacy of traditional accounting work constantly change so that the integration of financial accounting and management accounting is nurtured. Under the platform of "Internet+" technology, the deep integration of financial accounting and management accounting can effectively reduce data redundancy, restrict the distortion of accounting information, reduce the cost of enterprise information and give full play to the management function of accounting so as to better meet the needs of accounting information users.