The embodiments of the present invention disclose a service processing anomaly detecting method and device. The method includes the following steps that: the processing data of a target service scenario are acquired, wherein the processing data include user request data and corresponding service return data; user request detection data are generated according to the user request data; and the userrequest detection data are sent, and service return detection data corresponding to the user request detection data are received; if the service return data are not matched with the service return detection data, it is determined that the processing of the target service scenario is abnormal. With the technical schemes of the present invention adopted, abnormal conditions can be processed in time, so that a condition that a user obtains abnormal services can be avoided.