By fully taking the effects of data injection attacks and nonlinear disturbances into consideration, based on dynamic asynchronous event-triggered approach, an observer asynchronous event-triggered robust H∞ adaptive switching method is proposed for the stability of ICPSs. On the one hand, an adaptive feedback controller is designed to resist the negative influence of data injection attacks in systems. On the other hand, a Luenberger state observer is designed to reconstruct a reliable estimate of the whole system state. Finally, the advantage of the presented approach is illustrated by some simulation results.