The invention relates to a cold bend forming machine, in particular to a precise cold bend forming machine. The precise cold bend forming machine comprises a machine frame. The machine frame is provided with a feeding mechanism, a cold bend forming mechanism, a straightening mechanism and a cut-off mechanism. The cold bend forming mechanism is connected with a driving mechanism. The cold bend forming mechanism comprises two or more roller sets. Each roller set comprises two supporting housings. An upper roller shaft and a lower roller shaft are arranged between the supporting housings in each roller set. The cold bend forming machine is characterized in that the driving mechanism comprises a gearbox, one end of each upper roller shaft and one end of each lower roller shaft are located in the gearbox, the upper roller shafts and the lower roller shafts are provided with driven gears correspondingly, a large linkage gear is arranged between the driven gears of every two adjacent connected lower roller shafts, and small linkage gear sets are arranged between the driven gears of every two adjacent upper roller shafts at intervals. One lower roller shaft is provided with a transmission gear. The machine frame is provided with a motor. An output shaft of the motor is provided with a driving gear. The cold bend forming machine is good in transmission stability, capable of improving product precision, high in efficiency and low in produced noise.