The invention discloses a frozen soil dynamic load direct shear apparatus comprising a shearing box. The shearing box comprises an upper shearing box and a lower shearing box. An ejection head seat is arranged outside the right side of the upper shearing box. A fixed seat is fixed on the end of the right side of a workbench. An ejection head is fixed on the fixed seat. The ejection head matches the ejection head seat of the upper shearing box. The right end of the upper shearing box is fixed. The left end of the upper shearing box is fixed through a fixing device arranged on the workbench. A pushing head is arranged outside the left side of the lower shearing box. The pushing head is connected with an actuating shaft of a loading head through a pin. The loading head provides horizontal dynamic load for the lower shearing box through the actuating shaft. The loading head is fixed on the left side of the workbench through a fixing plate, and is connected with an oil pump. A displacement meter ejection plate is arranged on the actuating shaft. The displacement meter ejection plate cooperates with a displacement meter, and the two are used for measuring real-time displacement of the lower shearing box. A force feedback device is also arranged on the actuating shaft. The displacement meter and the feedback device are connected with a digital measurement and control system and a computer system through a data acquisition device.