A method for controlling state switching of a fluid torque converter, the method comprising: obtaining a target instruction when a fluid torque converter of a vehicle is in a locked state, wherein the target instruction triggers a change of a torque transmission direction of a transmission system of the vehicle; obtaining a state parameter, and determining whether the current vehicle is in a target operating condition according to the state parameter; and if the current vehicle is in the target operating condition, switching the fluid torque converter to an open state, and switching the fluid torque converter back to the locked state after maintaining the open state for a preset period of time; characterized in that the obtaining a state parameter, and determining whether the current vehicle is in a target operating condition according to the state parameter comprises: obtaining target operating condition criterion; obtaining a state parameter pointed by the target operating condition criterion; and determining whether the current vehicle is in the target operating condition according to the state parameter and the target operating condition criterion; and in that the target operating condition criterion comprises first criterion and second criterion, the first criterion is that torque of an engine is less than a preset first threshold, the second criterion comprises driving mode sub-criterion, rotation speed sub-criterion, gear position sub-criterion, accelerator opening degree sub-criterion, accelerator change rate sub-criterion, and gearbox oil temperature sub-criterion; the obtaining a state parameter pointed by the target operating condition criterion comprises: obtaining an engine torque, a current driving mode, an engine rotation speed, a gearbox gear position, an accelerator opening degree, an accelerator change rate, and a gearbox oil temperature; the determining whether the current vehicle is in the target operating condition according to the state parameter and the target operating condition criterion comprises: if the engine torque is less than a first threshold, the current driving mode is in a target driving mode, the engine rotation speed is less than or equal to a second threshold, the gearbox gear position is in a target gear position, the accelerator opening degree is less than or equal to a third threshold, the accelerator change rate is larger than or equal to a fourth threshold, and the gearbox oil temperature is in a preset oil temperature range, determining that the current vehicle is in the target operating condition. the obtaining a state parameter, and determining whether the current vehicle is in a target operating condition according to the state parameter comprises: obtaining target operating condition criterion; obtaining a state parameter pointed by the target operating condition criterion; and determining whether the current vehicle is in the target operating condition according to the state parameter and the target operating condition criterion; and in that the target operating condition criterion comprises first criterion and second criterion, the first criterion is that torque of an engine is less than a preset first threshold, the second criterion comprises driving mode sub-criterion, rotation speed sub-criterion, gear position sub-criterion, accelerator opening degree sub-criterion, accelerator change rate sub-criterion, and gearbox oil temperature sub-criterion; the obtaining a state parameter pointed by the target operating condition criterion comprises: obtaining an engine torque, a current driving mode, an engine rotation speed, a gearbox gear position, an accelerator opening degree, an accelerator change rate, and a gearbox oil temperature; the determining whether the current vehicle is in the target operating condition according to the state parameter and the target operating condition criterion comprises: if the engine torque is less than a first threshold, the current driving mode is in a target driving mode, the engine rotation speed is less than or equal to a second threshold, the gearbox gear position is in a target gear position, the accelerator opening degree is less than or equal to a third threshold, the accelerator change rate is larger than or equal to a fourth threshold, and the gearbox oil temperature is in a preset oil temperature range, determining that the current vehicle is in the target operating condition.