The invention discloses an experiment device and method for testing dynamic characteristic of a scraper conveyor. The device comprises a rack, a chain drive mechanism, a stop lever mechanism and a reset motor. The rack is provided with a guide rail. The chain drive mechanism comprises a chain wheel, a scraper chain, a scraper plate, a drive variable-speed motor, a load section damping device and ano-load section tension device. The scraper plate is provided with a speed sensor and an acceleration sensor. The scraper chain is provided with strain foils for transmitting speed, acceleration andtension characteristic of the scraper conveyer. The drive variable-speed motor drives the chain wheel to rotate and can adjust the rotation speed of the chain wheel. The load section damping device adjusts the magnitude of damping through a magnetic powder brake, and simulates different load conditions. The no-load section tension device provides tension required by the no-load section of the scraper chain. The stop lever mechanism is used for stopping the scraper plate and simulates clamping chain conditions of the scraper conveyer. The method can simulate dynamic characteristics of an actualscraper conveyor under different working conditions, and prevents experiment on a complex conveyor structure.