An electrical treatment probe for caval sphincter includes: a head portion with a probe-head internal connecting tube connected to the rear of the head portion a middle portion including a hollow middle-section tube with a first internal connecting tube and a second internal connecting tube disposed at the front and rear of the middle-section tube respectively a tail portion including a hollow probe-tail tube with a probe-tail internal connecting tube disposed at the front of the probe-tail tube two conductive rings sheathed on the probe-head internal connecting tube and the first internal connecting tube, and the second internal connecting tube and the probe-tail internal connecting tube respectively a conductive wire module including first and second conductive wires which are pressed by the conductive rings to produce a contacting and positioning effect. Thus, an electrical treatment probe casing is formed by the aforementioned elements and filled with a filler.