An endoscope main board (10), an endoscope (100) and a detection method, wherein, the endoscope main board (10) is used to connect a terminal (200) and a camera module (20), the endoscope main board (10) comprises: a communication interface (11), a wireless communication module (12) and an adapter plate (13), wherein the communication interface (11) and the wireless communication module (12) are respectively connected with the adapter plate (13), and the adapter plate (13) is connected with the camera module (20)； one of the communication interface (11) or the wireless communication module (12) is used to connect the terminal (200)； the adapter plate (13) comprises a detection module (131) and a gating switch (132)； the detection module (131) is used to detect the communication state between the communication interface (11) or the wireless communication module (12) and the terminal (200), and sends a signal to the gating switch (132) according to the communication state； and the gating switch (132) is used to communicate the camera module (20) with one of the communication interface (11) or the wireless communication module (12) according to the signal. In this way, the wired communication mode and the wireless communication mode can be simultaneously supported.Carte mère d'endoscope (10), endoscope (100) et procédé de détection, la carte mère d'endoscope (10) étant utilisée pour connecter un terminal (200) et un module de caméra (20), la carte mère d'endoscope (10) comprenant une interface de communication (11), un module de communication sans fil (12) et une plaque d'adaptation (13), l'interface de communication (11) et le module de communication sans fil (12) étant respectivement connectés à la plaque d'adaptation (13) et la plaque d'adaptation (13) étant connectée au module de caméra (20) ； l'interface de communication (11) ou le module de communication sans fil (12) étant utilisé pour connecter le terminal (200) ； la plaque d'adaptation(13) comprend un module d
