Manhole step seal structure and seal pack

The present invention relates to a manhole step seal structure and seal package which improves the various shortcomings of the prior art by enhancing the adaptation between the stepping rod and the concrete wall as well as by increasing the acting area of stepping rod on the concrete wall, wherein the step comprises: a plurality of locking elements and at least a step. Foot parts parallel to each other are extended separately from both two ends of step. The present invention is characterized in that seal packs separately are sleeved on the step foot parts, two ends of the seal packs are separated into an internal seal element and an external seal element. The internal seal element arranged between the entrance of the installation hole and the anti-slip part, and the external element arranged between the locking elements and the exit of the installation hole, thereby to effectively solve the shortcomings of periphery breakage around the installation hole or the installation hole being enlarged due to the overl