EPB System is known to be the next-generation parking brake system, since it allows to achieve the optimal parking performance through electronic control. However, the structural complexity with spur gears of current EPB system raises comparatively high defect production rate. Moreover, the current EPB system with spur gear provides around 13 kN of clamping force, which is known to be insufficient to hold the large size car with up to 3,000cc engine room volume since it needs more than 18kN clamping force. By the waym it is reported that the number of elements is able to be decreased and the compact size elements can be used if helical gear is installed in the EPB system. Also, low level of the defect production rate can be obtained with reduced noise and vibration level. Generally, helical gear is manufactured using cutting, which arises loss of material, post cutting and low production rate, therefore cold forging would be one of the key to solve problems listed above. In the current study, helical gear is considered instead of spur gear for EPB system to achieve compact size EPB system with enhanced clamping force. Also, cold forging technology has been investigated to secure the high production rate as well as superior mechanical properties of the helcal gear. Two types of finite element analyses were performed with Deform-3D to predict formality of products depending upon manufacturing process and the shape of mould, i.e. forward extrusion analysis was carried out to find the optimum angle for the entrance part and lateral extrusion analysis was conducted to achieve the optimum shape of moulds. Results of FE analyses show that the lateral extrusion has a merit for the dimensional accuracy and the loger life of moulds owing to the uniform distribution of forming force. It is found that the development of decent cold forging technology guarantees the enhanced recyclability of raw material, excellent mechanical characteristics and higher production rate.