Abstract: The invention discloses a freely rotatable and telescopic intelligent arm comprising a base, a telescopic joint assembly arranged on the base, an adjustable clamp rotatably connected to the telescopic joint assembly, and a fixing device arranged on the base, wherein the telescopic joint assembly comprises at least two joint sets, and two adjacent joint sets are rotatably connected. The freely rotatable and telescopic intelligent arm can be fixed on any part of the human body, and has the functions of being freely telescopic, swinging, spinning and rotating, which not only releases the support of a human hand on a mobile terminal (mobile phone), relieves the pressure on the arm, eliminates the sore sense of holding the mobile terminal (mobile phone) for a long time, but also enables a user to obtain more appropriate watching and operating directions and angles. The convenience for the user to use and operate the mobile terminal (mobile phone) is greatly improved.