The invention belongs to the technical field of computers, and discloses a business engine based on multilevel two-way circulation control. A workflow data circulation model of layer-by-layer and cross-layer circulation of the data formed by four data objects of business groups, business, transactions and forms and a workflow circulation model based on business and transaction key circulation control parameters and callback processing are utilized, and the business group layer and the business layer are introduced to perform work and data circulation control in complex business logic processing; the originally independent and discrete transaction and form objects are integrated together through the business to perform systematic management; association of different types of transactions and forms is performed; dynamic circulation auxiliary support is performed by extracting the transaction circulation data and mining the association relationship between task and work circulation and the business engine data objects; and the circulation paths are screened, filtered and recommended in the circulation process according to the historical business processing situation to promote the work. The business circulation correctness and the data security can be effectively enhanced.