Disclosed is a renal artery radiofrequency ablation electrode catheter, comprising a catheter body section (11), a catheter helical section (12) and a handle (15), wherein one end of the catheter body section (11) is connected to the catheter helical section (12), and the other end of the catheter body section (11) is connected to the handle (15), wherein the handle (15) is provided with a circle adjustment structure for controlling the catheter helical section (12) to switch between a helical shape and a straight shape, and the catheter helical section (12) is provided with an electrode (18). The renal artery radiofrequency ablation electrode catheter has a simple structure, facilitates the catheter entering into the target vessel for radiofrequency ablation during surgery, and achieves the effect of isolating nerve conduction in a whole circle through ablation of a projected radial circle of the renal artery in the axial direction of the renal artery, so as to achieve the purpose of treatment of resistant hypertension.
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