In the present study, A new type metal organic framework (MOFs) UiO-66(Zr) was used as the adsorbent to study the influence on adsorption of As³⁺, including the adsorption time,temperature, and solution pH, and an adsorption kinetics model of As³⁺ was established through the researches on adsorption isotherm and adsorption kinetics. Our results showed that the new material UiO-66(Zr) has a high absorptivity for As³⁺ in wide-scope pH value solutions and the best pH value is 6.0. Excellent adsorptive property was found when using the solutions with the initial concentration ranging from 10 to 60 μg/L, and the UiO-66(Zr) adsorption rate can reach to about 99%. Researchs on adsorption isotherm and adsorption kinetics showed that the adsorption process of new material UiO-66(Zr) for As³⁺ was consistent well with the Langmuir model in thermodynamics, a monolayer adsorption one. Meanwhile, pseudo-second order kinetic model could fit the adsorption process (R²=1.000) very well. Thus, we supposed that the new material UiO-66(Zr) might be used as a good adsorbent for As³⁺ adsorption, separation and enrichment.