Vehicle and door opening reminding device thereof

The utility model relates to the field of automobiles, and provides a vehicle and a door opening reminding device thereof. The device comprises a vehicle speed detection unit, a vehicle door lock state detection unit, an environment detection unit and an alarm reminding unit, wherein the vehicle speed detection unit is configured to detect the vehicle speed of the vehicle; the vehicle door lock state detection unit is configured to detect whether a vehicle door lock of the vehicle is unlocked or not; an enabling pin of the environment detection unit is respectively connected with an output pin of the vehicle speed detection unit and an output pin of the vehicle door lock state detection unit, and an output pin of the environment detection unit is connected with an input end of the alarm reminding unit. The reminding information is broadcast when the vehicle is parked and the vehicle door is unlocked, so that passengers can be reminded in time, and the probability of dangerous accidents is reduced. 本申请涉及汽车领域，提