The invention discloses a
tire pressure low-speed air leakage detection method and a
tire pressure detection device. The
tire pressure low-speed air leakage detection method comprises the steps that tire state data are obtained in real time, a tire pressure state table is formed, and the tire state data comprise
collection time, a current tire pressure value and a current tire temperature value matched with the current tire pressure value; a sampling tire temperature value matched with the sampling tire pressure value is acquired from the tire pressure state table based on the sampling tire pressure value; a current tire pressure value group matched with the sampling tire temperature value in the tire pressure state table is determined, wherein the difference value between the current tiretemperature corresponding to the current tire pressure value in the current tire pressure value group and the sampling tire temperature value meets a preset temperature threshold value; the slow airleakage detection ratio is equal to (the maximum tire pressure in the current tire pressure value group minus the sampling tire pressure value) / the maximum tire pressure value; and if the slow air leakage detection ratio is greater than a preset rate value, determining slow air leakage of the tire. The tire pressure low-speed air leakage is carried out in the mode, special detection equipment fordetecting various environmental parameters does not need to be additionally arranged, the development cost does not need to be additionally increased, and more accurate low-speed air leakage detectioncan be achieved.