The Nuclotron-based Ion Collider fAcility (NICA) [1] is a new accelerator complex being constructed at JINR. It is aimed to collider experiments with ions and protons and has to provide the ion-ion (Au ⁺⁷⁹ ) and ion-proton collision in the energy range of 1÷4.5 GeV/u and also polarized proton-proton (5÷12.6 GeV) and deuteron-deuteron (2÷5.8 GeV/u) collisions. Two collider rings are designed and optimized to achieve the required luminosity at two interaction points (IP). Taking into account space charge effects of the intense ion beam the application of electron beam or stochastic cooling methods were proposed to provide beam or luminosity lifetime. This paper is considering one of the most challenging problems of accelerator physics that is finding the dynamic aperture (DA) of the collider ring.