A lever connecting mechanism for a horizontal hydraulic jack with tension rod comprises a vertical pumping rod having a traversed U-shape connecting member fixed thereon for receiving a bar provided on a foot pedal which is pivotally connected to the structure of the hydraulic jack, and a lever member pivotally connected to the structure of the hydraulic jack. The lever member has the same axis of rotation as the one of the foot pedal so that said lever member can be used to drive said foot pedal toward a downward direction. Since the foot pedal and the lever member are individually supported by two springs at their upmost position, the foot pedal can be depressed without affecting the lever member, but however, the downward movement of lever member will cause the foot pedal being depressed also.