Cooperative control communication technology for vehicle platoons leveraging C-V2X relies on direct communication interfaces to achieve real-time information exchange between vehicles, enhancing the stability and efficiency of platoon driving. This paper systematically analyzes the C-V2X system architecture and its application in vehicle plots, exploring the evolution path from LTE-V2X to NR-V2X. It investigates the design and performance validation of cooperative control mechanisms while evaluating potential security threats and countermeasures. By integrating perception, positioning, and cloud-based control technologies, an optimized solution is proposed to meet lowlatency and high-reliability requirements of cooperative control. Research demonstrates that this technology reduces spacing errors and ensures string stability, providing technical support for intelligent transportation. The paper further discusses communication protocol optimization and practical deployment challenges, emphasizing the significance of multimodal fusion to advance vehicle platooning toward higher levels of intelligence.