The present invention is related to a circuit arrangement of a gate side fan out area. The circuit arrangement comprises: a first circuit module (T1), which the gate is coupled to a first input end (A), the drain and the source are respectively coupled to a second input end (B) and a Nth gate scan line (N); a first end (1) of the first circuit module is coupled to the first input end, a second end (2) is coupled to the second input end, and a third end (3) is coupled to the N+1th gate scan line (N+1); a first end (1) and a second end (2) of the second circuit module are coupled to the second input end (B), and a third end (3) is coupled to the Nth gate scan line (N); a first end (1) and a second end (2) of the third circuit module are coupled to the second input end (B), and a third end (3) is coupled to the N+1th gate scan line (N+1); a periodic square wave is inputted to the first input end (A), and a gate scanning signal is inputted to the second input end (B). The present invention is capable of enormously reducing the cost of a G-COF.