The invention discloses a medical catheter device, and provides a controllable bent and spiral irrigation catheter which comprises a handle, a control component arranged in the handle, a guide tube and a spiral ablation catheter body. The guide tube and the spiral ablation catheter body are connected with the control component, the spiral ablation catheter body is movably arranged in a cavity of the guide tube, a first traction fiber is arranged in the guide tube, a second traction fiber is fixedly arranged in the spiral ablation catheter body, and an electrode is arranged in the spiral ablation catheter body. The control component comprises a first control button, a second control button and a third control button, the far end of the spiral ablation catheter body is spiral, and one or more electrodes are arranged on the spiral section of the spiral ablation catheter body. The tail of the spiral far end of the spiral ablation catheter body is a straight section, and one or more electrodes are arranged on the straight section. The electrode or the catheter body is provided with one or more holes for spraying fluid. The controllable bent and spiral irrigation catheter can control the ablation catheter body at the far end to quickly reach an assigned tissue part for diagnosis and treatment, fluid is sprayed in the treating process, complications are prevented, and after treatment, if the treatment is complete is judged through the catheter, and the curing effect is effectively improved.