With the advent of Industry 4.0, water treatment systems (WTSs) are recognized as typical industrial cyber-physical systems (iCPSs) that are connected to t

In recent years, with the upgrading of the attack technology, stealthy DoS jamming attacks have become the primary factor to threaten the security of Industrial Cyber-Physical Systems (ICPS). Considering the complex industrial scenarios of ICPS, which are influenced by a variety of external and internal interference, a $H_{\infty }$ controller designing problem is studied in this paper for an ICPS which deploys a hybrid-triggered mechanism (HTM) in the wireless channel encountering stealthy DoS jamming attacks. By employing a compensation mechanism which is employed in the controller to mitigate the impacts of attacks, external disturbance, limited channel capacity, wireless channel noise, we establish a closed-loop system and prove the closed-loop system is mean square exponentially stable and can achieve the desired $H_{\infty }$ disturbance rejection level theoretically. Finally, simulation examples are used to demonstrate effectiveness of the proposed $H_{\infty }$ controller.