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This utility model provides a semiconductor dry film roll transition support device, relating to the field of film roll support technology. It includes a movable base and a support arm structure. The support arm structure has two arms respectively installed on both sides of the top of the movable base for supporting the semiconductor dry film roll. A support rod rotation groove is formed on the side of the support arm structure away from the movable base. Supporting rotating wheels are symmetrically arranged on the bottom surface of the inner side of the support rod rotation groove. A semi-circular arc-shaped clamping plate is provided above the two supporting rotating wheels. An adjusting component is connected to the semi-circular arc-shaped clamping plate, and the adjusting component is threaded to the top of the support arm structure and into the support rod rotation groove. This utility model supports the semiconductor dry film roll by setting two support arm structures. The supporting rotating wheels in the support rod rotation groove cooperate with the semi-circular arc-shaped clamping plate. The position of the semi-circular arc-shaped clamping plate is adjusted by the adjusting component, which can stably limit the support rod, prevent excessive swaying during roll rotation, improve production efficiency, ensure product quality, and reduce scrap rate.