In　this　article,　an　adaptive　quantized　tracking　control　for　a　class　of　nonlinear　systems　with　both　input　and　state　quantization　is　investigated.　For　the　state　quantization,　instead　of　quantizing　all　the　system　states,　only　two　signals　need　to　be　quantized　and　transmitted,　which　greatly　reduces　the　communication　burden.　It　is　proved　that　with　this　proposed　scheme,　global　stability　of　the　closed-loop　system　can　be　achieved　even　with　very　coarse　quantizers,　and　the　tracking　errors　can　be　made　arbitrarily　small　by　choosing　some　design　parameters　appropriately.　IEEE