Business board card detection method and device

The embodiment of the invention provides a service board card detection method and device, and the method comprises the steps: forwarding a preset number of test messages to a switching chip of a service board card through a switching chip of a main control board card for each to-be-detected service board card, sending a test message to a search engine in the service board card for matching by a switch chip of the service board card, the test message being a message conforming to a mask rule; respectively reading the hit count of the search engine in each service board card, wherein the hit count is the number of the test messages hitting the mask rule counted when the search engine in each service board card matches the test messages; and in response to the fact that the hit count of any search engine is not equal to the preset number, determining that the search engines in the service board card are abnormal. According to the method, the problem of searching the engine in the business board card of the fram