I will review recent development of phenomenological analyses for high-energy heavy ion collisions at RHIC and LHC. After the success of the QGP production at RHIC, current our goal is to quantitatively understand properties of QGP such as equation of states and transport coefficients. I will show the latest experimental results at RHIC and LHC and their interpretation from the point of view of the QCD phase transition. I am also planning to report recent progress of our relativistic hydrodynamic model  which is one of promising phenomenological models for describing time evolution of heavy ion collisions.