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This application discloses a rack impact simulation device and system, relating to the field of rack impact testing technology. The rack impact simulation device includes an impact force transmission mechanism and an impact force execution mechanism. The impact force transmission mechanism receives impact force along a first direction and converts it into an impact force along a horizontal direction. The impact force execution mechanism is connected to the impact force transmission mechanism and applies the horizontal impact force to the rack under test. The first direction and the horizontal direction form an angle. Through the coordinated design of the impact force transmission mechanism and the impact force execution mechanism, the conversion of the impact force direction can be achieved. Ultimately, the horizontal impact force is directly applied to the horizontally placed rack, avoiding the risk of rack center of gravity shift and tipping during testing caused by traditional inclined plane structures. Furthermore, the horizontal impact path eliminates the influence of the inclined plane angle on rack rebound, reducing the risk of secondary impacts interfering with the accuracy of experimental data.