A pair of hose clamp pliers for clamping a hose is provided with two clamping plates. The pliers include two clamping ends capable of moving toward or away from each other. The two clamping plates are fixedly connected to the two clamping ends and provided with movement guide protrusions and movement stop protrusions. With the protrusions formed along the periphery of the two clamping plates and the gaps defined by the protrusions, the hose clamp pliers can clamp the hose clamp in different directions, so that it can be adapted to different work requirements or environments, for example, in a narrow space. Further, the movement guide protrusions and movement stop protrusions restrict the hose clamp in two different directions, so as to improve clamping stability.