n view of security deployment of network slices, a network slice deployment strategy based on security awareness is proposed. In the network slice deployment phase, virtual network functions (VNF) are mapped first, and security constraints between VNF and physical nodes are defined from the perspective of security requirements. Secondly, the security feature matrix of physical nodes in the slicing deployment process is extracted, and the probability distribution of the security feature matrix is output by the policy network and sorted. Finally, the strategyC-based reinforcement learning is utilized for solving the mapping results of VNF. After the VNF mapping is complete, the Dijkstra algorithm is used to map virtual links to obtain the security deployment result of network slices. The simulation results show that the proposed strategy is superior to GRC and SVNEC-RL algorithms in terms of longC-term costC-benefit ratio, request acceptance rate, network resource utilization, bandwidth utilization and time complexity, and can meet the security requirements of network slicing during deployment.