Return detection device and system of cognitive training terminal

The utility model discloses a return detection device and system of a cognitive training terminal. The return detection device comprises an identity recognition part which is used for reading a built-in feature code of a to-be-returned terminal so as to recognize whether the to-be-returned terminal is legal or not; the conveying part is arranged at the downstream of the identity recognition part so as to grab the legal to-be-returned terminal recognized by the identity recognition part and convey the legal to-be-returned terminal to a preset position; the detection part is arranged at a preset position and is provided with a communication interface used for being connected with a to-be-returned terminal; and the detection part can perform return detection on the to-be-returned terminal in a state of being electrically connected with the to-be-returned terminal. According to the return detection device, the identity recognition part is used for carrying out identity recognition on the to-be-returned terminal,