The invention relates to an angle adjustment mechanism for a probe rod at the outer end of a wing, which consists of a probe rod joint (1), a joint bearing (2), a bearing support (3), a nut (4), a probe rod end (5), Tile cover (6), bolt I (7), bolt II (8), bracket (9), middle part of the probe rod (10), toothed pad (11), and tooth plate (12), the middle part of the probe rod 10 is adjusted to When the position is proper, the locking bolt II 8, the serrations of the toothed pad 11 and the tooth plate 12 are engaged to limit the position of the middle part 10 of the probe rod, and the fixation of the probe rod after angle adjustment is completed. The invention can not only meet the requirement of adjusting the angle of the probe rod, but also can completely fix the probe rod when the adjustment position is proper.