This article investigates the issue of quantized guaranteed-cost dynamic-output-feedback control for uncertain-nonlinear NCSs with DoS attacks. Firstly, the interval-type-2 Takagi-Sugeno fuzzy model is built to deal with the nonlinear NCSs. Secondly, to reduce the burden on communication resources, the dynamic quantization is introduced from measurement-output and control-input. Considering the existence of DoS attacks in network channel, the DoS attacks model is constructed by binary-Markov-chain. This paper aims to obtain the controller and quantizers with DoS attacks. Some sufficient conditions of uncertain-nonlinear NCSs are received to ensure the stochastic stability and guaranteed-cost performance. Finally, an example is simulated to prove the advantage of proposed method.