A transfer mechanism, comprising: a driving component ; a fixed frame ; and a conveyor belt surrounding an outside of the fixed frame ; characterized in that the driving component is configured to drive the conveyor belt to rotate; a solar cell , a solder ribbon and a film are stacked sequentially on the conveyor belt from top to bottom; the film is configured to cover and stick the solder ribbon to the solar cell ; the film is provided with an air-permeable zone in a projection area of the solar cell ; the conveyor belt is provided with a first air hole (a) running through the conveyor belt ; the fixed frame is provided with an air hole group; a first end of the air hole group is attached to a bottom of the conveyor belt , and a second end of the air hole group is connected to an external air source to suck air; the air hole group comprises a second air hole (b) and a third air hole (b); the driving component is configured to drive the conveyor belt to rotate, so as to drive the solar cell , the solder ribbon and the film to move; when the conveyor belt is operated, the second air hole (b) is communicated sequentially with the first air hole (a) and the air-permeable zone to form a channel S1, and a first negative pressure is formed between the channel S1 and a bottom surface of the solar cell , such that the solar cell stacked on the solder ribbon is held and fixed; and the conveyor belt is also provided with a fourth air hole (a); the fourth air hole (a) does not communicate with the air-permeable zone , and is communicated with the third air hole (b) to form a channel S2; and a second negative pressure is formed between the channel S2 and a bottom surface of the film , so as to hold and fix the film . a driving component ; a fixed frame ; and a conveyor belt surrounding an outside of the fixed frame ; characterized in that the driving component is configured to drive the conveyor belt to rotate; a solar cell , a solder ribbon and a film are stacked sequentially on the conveyor belt from top to bottom; the film is configured to cover and stick the solder ribbon to the solar cell ; the film is provided with an air-permeable zone in a projection area of the solar cell ; the conveyor belt is provided with a first air hole (a) running through the conveyor belt ; the fixed frame is provided with an air hole group; a first end of the air hole group is attached to a bottom of the conveyor belt , and a second end of the air hole group is connected to an external air source to suck air; the air hole group comprises a second air hole (b) and a third air hole (b); the driving component is configured to drive the conveyor belt to rotate, so as to drive the solar cell , the solder ribbon and the film to move; when the conveyor belt is operated, the second air hole (b) is communicated sequentially with the first air hole (a) and the air-permeable zone to form a channel S1, and a first negative pressure is formed between the channel S1 and a bottom surface of the solar cell , such that the solar cell stacked on the solder ribbon is held and fixed; and the conveyor belt is also provided with a fourth air hole (a); the fourth air hole (a) does not communicate with the air-permeable zone , and is communicated with the third air hole (b) to form a channel S2; and a second negative pressure is formed between the channel S2 and a bottom surface of the film , so as to hold and fix the film . <EOS>