The utility model belongs to the technical field of firearm safety cabinets, and discloses a modularized firearm safety cabinet which comprises a cabinet body and modularized storage units, the cabinet body comprises a body, at least two guide rails are fixedly connected to the two sides of the inner wall of the body, each guide rail is provided with a plurality of sets of positioning holes in the vertical direction of the guide rail, and the modularized storage units are arranged in the body. The modularized storage unit comprises a first layer plate and a second layer plate, connecting components are connected to the two sides of the bottom of the first layer plate and the two sides of the bottom of the second layer plate, each connecting component comprises an L-shaped plate, and clamping blocks are fixedly connected to the outer sides of the L-shaped plates. The connecting members on the modularized storage units are matched with the positioning holes in the guide rails, so that the heights of the first layer plate and the second layer plate can be quickly adjusted,
layout according to modules is facilitated, diversified storage requirements of different types of firearms and follow-up equipment can be met, the space
utilization rate is increased, and the cost is reduced. And the in-cabinet reconstruction operation after equipment updating or compiling adjustment is simplified.