A method for constructing a simulated vehicle lane change trajectory, executed by a target lane change vehicle, the method comprising: constructing a lane change trajectory coordinate system by using a position of the target lane change vehicle as an origin, using a center line of a current lane of the target lane change vehicle as an ordinate axis, and using a normal of the center line as an abscissa axis; determining a target preceding vehicle according to the position of the target lane change vehicle; determining target longitudinal traveling data of the target lane change vehicle in a lane change process according to a longitudinal speed of the target lane change vehicle, a longitudinal speed of the target preceding vehicle, and a distance between the target preceding vehicle and the target lane change vehicle at each time instant in the lane change process; determining target transverse traveling data of the target lane change vehicle in the lane change process according to preset initial transverse traveling data, preset end transverse traveling data, and preset lane change time in the lane change process; constructing, in a case that a preset lane change condition is met, or in a case that the preset lane change condition is not met and it is determined to continue to change lanes, a first lane change trajectory of the target lane change vehicle in the lane change trajectory coordinate system based on the target transverse traveling data and the target longitudinal traveling data if a following vehicle in a target lane decelerates; updating, in a case that the preset lane change condition is not met and it is determined to continue to change lanes, an acceleration in the target longitudinal traveling data if the following vehicle does not decelerate, to cause an updated longitudinal speed of the target lane change vehicle to be greater than a longitudinal speed of the following vehicle and less than a longitudinal speed of a preceding vehicle in the target lane; and constructing a second lane change trajectory of the target lane change vehicle in the lane change trajectory coordinate system based on the updated longitudinal traveling data and the target transverse traveling data; and updating, in a case that the preset lane change condition is not met and it is determined not to continue to change lanes, transverse traveling data and longitudinal traveling data in an original lane return process, and constructing a first original lane return trajectory of the target lane change vehicle in the lane change trajectory coordinate system according to the transverse traveling data and the longitudinal traveling data in the original lane return process. constructing a lane change trajectory coordinate system by using a position of the target lane change vehicle as an origin, using a center line of a current lane of the target lane change vehicle as an ordinate axis, and using a normal of the center line as an abscissa axis; determining a target preceding vehicle according to the position of the target lane change vehicle; determining target longitudinal traveling data of the target lane change vehicle in a lane change process according to a longitudinal speed of the target lane change vehicle, a longitudinal speed of the target preceding vehicle, and a distance between the target preceding vehicle and the target lane change vehicle at each time instant in the lane change process; determining target transverse traveling data of the target lane change vehicle in the lane change process according to preset initial transverse traveling data, preset end transverse traveling data, and preset lane change time in the lane change process; constructing, in a case that a preset lane change condition is met, or in a case that the preset lane change condition is not met and it is determined to continue to change lanes, a first lane change trajectory of the target lane change vehicle in the lane change trajectory coordinate system based on the target transverse traveling data and the target longitudinal traveling data if a following vehicle in a target lane decelerates; updating, in a case that the preset lane change condition is not met and it is determined to continue to change lanes, an acceleration in the target longitudinal traveling data if the following vehicle does not decelerate, to cause an updated longitudinal speed of the target lane change vehicle to be greater than a longitudinal speed of the following vehicle and less than a longitudinal speed of a preceding vehicle in the target lane; and constructing a second lane change trajectory of the target lane change vehicle in the lane change trajectory coordinate system based on the updated longitudinal traveling data and the target transverse traveling data; and updating, in a case that the preset lane change condition is not met and it is determined not to continue to change lanes, transverse traveling data and longitudinal traveling data in an original lane return process, and constructing a first original lane return trajectory of the target lane change vehicle in the lane change trajectory coordinate system according to the transverse traveling data and the longitudinal traveling data in the original lane return process.