An integrated dust collection and disinfection device for vehicle interior decoration comprises a measuring device, a body, an adsorption net, an ignition head, a fan, an exhaust pipe, a button, an air suction pipe, an ignition device, an ashtray, a plug, a mercury thermometer, a generating hole, an ultraviolet sterilizer, a pointer hygrometer and a power line device. According to the integrated dust collection and disinfection device for vehicle interior decoration, dust is adsorbed on the adsorption net to be collected, a cigarette end is fired through the ignition device, and cigarette ashis collected through the ashtray. As for temperature and humidity measuring, compared with an existing disinfection and dust collection device with a simple function, the device has the advantages ofstrong functionality, high integration degree and the like, the problems that the existing dust collection and disinfection device can only carry out dust collection and simple disinfection in a vehicle and has a single function are overcome, and the device has large market potential and is popularized in the market.