Machine for the introduction of poles into the ground, particularly for the reinforcement of safety barriers, comprising: - at least one movement assembly for the movement of said machine on a road surface at the point where at least one safety barrier to be reinforced is located, wherein said safety barrier to be reinforced is composed of a series of sustaining poles inserted in the ground, laterally to the road surface and of a longitudinal band connecting the sustaining poles to each other and extending substantially parallel to the road surface; - at least one insertion assembly associated movable with said movement assembly and adapted to introduce at least partly into the ground at least one reinforcement pole at the point where the base of said safety barrier is located; - positioning means (9, 10) associated with said movement assembly and adapted to position said insertion assembly between: - at least one home position, wherein it approaches said movement assembly to allow the transit of said machine on the road surface to be placed in the proximity of a sustaining pole of said safety barrier to be reinforced; - at least one operating position, wherein, when said machine is placed in the proximity of said sustaining pole of the safety barrier, said insertion assembly is located beyond said longitudinal band of the safety the barrier; and - at least one insertion position, wherein said insertion assembly is tilted by an angle of insertion (α) for the introduction of said reinforcement pole laterally to the sustaining pole of the safety barrier and with an appropriate inclination in order to position itself at least partly below the road surface; wherein said movement assembly comprises a supporting frame, said supporting frame being configured to position said insertion assembly at a height equal to or higher than said safety barrier and wherein said positioning means (9, 10) comprise horizontal translation means to position said insertion assembly between said home position and said operating position. - at least one movement assembly for the movement of said machine on a road surface at the point where at least one safety barrier to be reinforced is located, wherein said safety barrier to be reinforced is composed of a series of sustaining poles inserted in the ground, laterally to the road surface and of a longitudinal band connecting the sustaining poles to each other and extending substantially parallel to the road surface; - at least one insertion assembly associated movable with said movement assembly and adapted to introduce at least partly into the ground at least one reinforcement pole at the point where the base of said safety barrier is located; - positioning means (9, 10) associated with said movement assembly and adapted to position said insertion assembly between: - at least one home position, wherein it approaches said movement assembly to allow the transit of said machine on the road surface to be placed in the proximity of a sustaining pole of said safety barrier to be reinforced; - at least one operating position, wherein, when said machine is placed in the proximity of said sustaining pole of the safety barrier, said insertion assembly is located beyond said longitudinal band of the safety the barrier; and - at least one insertion position, wherein said insertion assembly is tilted by an angle of insertion (α) for the introduction of said reinforcement pole laterally to the sustaining pole of the safety barrier and with an appropriate inclination in order to position itself at least partly below the road surface; - at least one home position, wherein it approaches said movement assembly to allow the transit of said machine on the road surface to be placed in the proximity of a sustaining pole of said safety barrier to be reinforced; - at least one operating position, wherein, when said machine is placed in the proximity of said sustaining pole of the safety barrier, said insertion assembly is located beyond said longitudinal band of the safety the barrier; and - at least one insertion position, wherein said insertion assembly is tilted by an angle of insertion (α) for the introduction of said reinforcement pole laterally to the sustaining pole of the safety barrier and with an appropriate inclination in order to position itself at least partly below the road surface;