While-drilling sampling tool testing device

The utility model relates to a sampling-while-drilling tool testing device, which comprises a shell in which a support plate is fixed; the communication conversion plate is arranged on the supporting plate, an input communication interface and an output communication interface are arranged on the communication conversion plate, and the input communication interface is connected with external control equipment through the shell; the stop valve main control panel is arranged on the supporting plate, and the stop valve main control panel is connected with the output communication interface; the plug-in module is arranged on the supporting plate, the plug-in module is electrically connected with the stop valve main control panel, and meanwhile, the plug-in module is connected with an external short section through the shell; and the power supply module is arranged on the supporting plate, is connected with the communication conversion plate and the stop valve main control panel, and can be connected with an exter