The invention discloses a special liquid feeding driving device for an infusion pump. According to the technical scheme, the special liquid feeding driving device for the infusion pump comprises a shell, wherein a liquid inlet channel and a liquid outlet channel are separately formed in two ends of the shell; a first lug which is close to the liquid inlet channel and a second lug which is close tothe liquid outlet channel are arranged on the shell; a silicon valve element is fixed on the shell and is provided with a first sheet and a second sheet; the first sheet is arranged at the end, whichis away from the liquid inlet channel, of the first lug; the second sheet is arranged at the end, which is close to the liquid outlet channel, of the second lug; a liquid storage space is formed by the shell and the silicon valve element and positioned between the first lug and the second lug; when the first sheet is attached to the first lug, the liquid inlet channel is isolated from the liquidstorage space; and when the second sheet is attached to the second lug, the liquid storage space is isolated from the liquid outlet channel. The special liquid feeding driving device for the infusionpump is further provided with a switch for controlling attachment between the second sheet and the second lug, and the surface, which is away from the liquid storage space, of the silicon valve element faces a push rod of the infusion pump. The special liquid feeding driving device for the infusion pump has the advantages that the infusion quantity can become stable, and stability of intravenous infusion is improved.