Portable automobile controller testing device

The utility model provides a portable automobile controller testing device. The portable automobile controller testing device comprises a testing machine shell, a USB port-HUB docking station is arranged in the testing machine shell, the USB port-HUB docking station is electrically connected with a CAN bus, an LIN bus, a data acquisition card module, an acquired data output USB port and a power supply, the input end of the data acquisition card module is electrically connected with two sets of voltage dividing circuits, and the output end of the data acquisition card module is electrically connected with a power supply. One group of the two groups of voltage division circuits is electrically connected with the input port of the digital quantity acquisition channel, the other group of the two groups of voltage division circuits is electrically connected with the input port of the analog quantity acquisition channel, one end of the power supply is electrically connected with the data acquisition card module, th