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For fuzzy bilinear systems, a class of event triggered sliding mode control is studied. The singular region with zero denominator of the controller is obtained, the event trigger threshold is selected, and the condition region to be met for event trigger is determined, so that the singular region is included in the condition region. The integral sliding mode surface is constructed, and the conventional sliding mode control law is obtained. On this basis, combined with the event trigger mechanism, the control law is extended, and the auxiliary control law is designed to make the system state transition smoothly when it is close to the singular region, ensure the stability of the system, and ensure that the state reaches the sliding mode surface normally. According to the designed event triggered sliding mode control law, considering the different situations that the system state approaches the singular region, combined with the Lyapunov stability condition, the reachability and stability of the system state are proved respectively. Finally, the effectiveness of the proposed method is verified by numerical simulation.