The invention discloses an automobile tire pressure monitoring device based on internet of things, which includes a main body of that monitoring device, a base protection box, a support, a display rotate assembly, a display screen, a speaker, a pressure sensor, a temperature sensor, a signal transmission module, a data processing module, a PLC controller and a remote communication module, whereinthe bottom end of the main body of the monitoring device is provided with a base protection box, a bracket is fixedly connected to one side of the base protection box, and the top end of the bracket is connected with a display screen through a display screen rotating assembly; Installation components can quickly fix the equipment inside the vehicle, and can quickly complete the disassembly convenient for users to change position, but also through bolts to achieve fixed installation, so that the equipment has a variety of installation methods; The display rotating assembly allows the display torotate and move freely, allowing the driver to adjust the display to the appropriate position for better observation of tire pressure changes in all directions and angles.