The present disclosure discloses an interface service function monitoring method and system based on data acquisition. The method includes the following steps: initiating, by a monitoring device, a service function monitoring request for an interface; determining whether the interface makes a response to the monitoring request; in a case that a response is made, determining whether the response content of the interface is expected; in a case that an abnormality occurs, analyzing, according to abnormality information, a cause of the abnormality, forming an abnormality analysis report, storing the abnormality information and the abnormality analysis report to a target server, and sending, by the target server, the abnormality information and the abnormality analysis report to an administrator; and determining, by the administrator, at least one of current service function states of the interface according to a monitoring record and the abnormality analysis report which are stored in the target server.