A radio frequency ablation device, comprising a radio frequency ablation tube (10), a control handle (20) and a temperature-controlling radio frequency instrument (35). The middle section of the radio frequency ablation tube (10) carries a strip-shaped connecting electrode a radio frequency electrode (12) is formed at the distal end of the radio frequency ablation tube (10) the radio frequency electrode (12) is connected to the control handle (20) via the strip-shaped connecting electrode. The control handle (20) comprises a control guiding control handle for controlling the degree of curvature of the distal end of the radio frequency ablation tube (10), and a tube electrode control handle (23) and a tube electrode auxiliary control handle (24) for controlling the degree of opening of the radio frequency electrode (12). The temperature-controlling radio frequency instrument (35) comprises a central processing and control module (1) a radio frequency releasing module (2), a impedance measuring module (3), a temperature monitoring module (4) and an alarm and automatic storage module (5) respectively connected to the central processing and control module (1). An integrated interface (50) is disposed at the rear of the control handle (20), and the temperature-controlling radio frequency instrument (35) is connected to the integrated interface (50) disposed on the control handle (20) via an integrated cable (34). And a radio frequency electrode (12) used in the radio frequency ablation device, a temperature-controlling radio frequency instrument (35), a radio frequency ablation tube (10) and a guide tube (16) are also provided.
