Abstract: A test method for a time-sensitive networking device, including steps of: sending a test request and a test goal; converting the test goal into test information; making a determination on a test scenario, wherein when the test scenario is a simulation test, a test indication signal is sent to a networking device under test, and when the test scenario is a field test, no test indication signal is sent; determining whether feedback information is received from the networking device under test within a test duration; in case of the reception, testing the feedback information and outputting a test result. A test system for a time-sensitive networking device, including a networking device testing apparatus, a user terminal and a plurality of networking devices under test. One terminal of the networking device testing apparatus is connected to the user terminal, and another terminal is connected to the plurality of networking devices under test.