Fuel tank pressure control method and vehicle

The invention relates to an oil tank pressure control method and a vehicle, and the method comprises the following steps: detecting the internal pressure of an oil tank in real time through a pressure sensor, and judging whether the internal pressure of the oil tank exceeds a preset threshold value or not; if it is judged that the internal pressure of the oil tank exceeds the preset threshold value, an air valve is opened to deflate the oil tank; and a carbon tank for filtering is arranged in a pipeline communicated with the air valve. The internal pressure of the oil tank is detected in real time through the pressure sensor, and when it is detected that the internal pressure of the oil tank is larger than the preset threshold value, the gas valve is actively opened to discharge oil gas in the oil tank into the carbon tank. According to the method, the internal pressure of the oil tank is detected in real time, the air valve is automatically controlled to be opened, and the pressure in the oil tank is always