The invention discloses an acceleration test device. The acceleration test device comprises a distance measuring end, a receiving end and a PC end; the distance measuring end is fixed directly in front of an object to be tested and is used for measuring the distance of the object to be tested from a distance measuring point which is directly in front of the object to be tested, performing data processing on the distance and sending processed data to the receiving end; the receiving end receives the data transmitted by the distance measuring end, processes the data and transmits the processed data to the PC end; and the PC end receives the distance data transmitted by the receiving end, begins time counting the moment when the object to be tested is started, and calculates the accelerationvalue of the object to be tested on the basis of the distance difference between distances covered during two time periods. The invention also discloses an acceleration test method. The acceleration test device and acceleration test method invention have the advantage of simplicity in operation.