Disclosed is a method and an order generation system for a software interface, the method including: by a UE, collecting operation information about a target object, and determining an operation type and an operation coordinate of the target object on the software interface; acquiring a coordinate set in a price coordinate system of the software interface; calculating differences between the operation coordinate and the plurality of coordinate values to obtain a plurality of difference values, extracting a minimum difference value from the plurality of difference values, and obtaining a first price corresponding to the minimum difference value; and generating a first straight line matching the first price and the operation type, and sending a transaction request including the first price and the operation type to a background server after superimposing the first straight line onto the software interface.