Abstract: “DISPOSITION INTRODUCED IN MOTORIZED GUN FOR BIOPSY SAMPLE COLLECTION” is an equipment for performing histological biopsy, belonging to the field of medical equipment; the inconvenience of the models of the start of the art lies in the fact that the equipment have the operating principle based on springs and when activated or fired, the energies accumulated in the springs are instantly released, causing vibrations or noises in the equipment, which results in discomfort to the patient; another inconvenience related to the biopsy equipment of the state of the art is the discomfort and the difficulty of the user in handling them; in order to solve these inconveniences, the object of the present patent application, called motorized equipment (Gun) for sample collection (1), was developed, and it is activated by electronic controls and the front (5) and rear carriages (6) that carry the needle assembly, made up of cannula (11) and stylet (28) are moved by a direct current electric motor (27) fed by an electric bat