The invention discloses a method and system for preventing a module in an electricity collection terminal from being bypassed, and belongs to the technical field of electricity collection terminal application. The method comprises: a system verification module SCM providing an external monitoring calling interface; the SCM module collecting and caching the actual operation information of the monitored software module and presenting the obtained monitoring information on a local side or a remote side; and the issuing interface of the message center module receiving the call of the SCM module.For the cache of the monitoring information under the multi-process in the shared memory, the SCM module centralizedly acquires the monitoring information under the multi-process by calling an acquisition interface in the message center module. The message center module centralizedly obtains the monitoring information collected and cached by the SCM module, carries out matching check on the monitoring information according to a predetermined matching rule, identifies and determines whether each relatively independent hierarchical software module in the hierarchical software system of the powerutilization collection terminal is effectively loaded into the system, and is reliably executed. According to the invention, the system legality is ensured.