Circuit board testing method, device, system and equipment

The invention discloses a method, a device, a system and equipment for testing a circuit board, which are applied to the technical field of machine vision detection and are used for solving the problem that the circuit board cannot be tested through a probe when a test point or a line width is smaller than the size of the probe in the prior art. The method specifically comprises the following steps: determining an adapter plate corresponding to a tested circuit board; acquiring position data of the tested circuit board and position data of the adapter plate, and determining offset data between the tested circuit board and the adapter plate; moving the adapter plate to a position matched with the tested circuit board according to the offset data, and pressing the adapter plate until the adapter plate is attached to the tested circuit board; and testing based on the circuit and the test point on the adapter plate. In the mode, the test point can be led out through the arrangement of the adapter plate, and the t