The research is intended to get the model for determining in Indonesia using dynamics model approach. The monetarist said that inflation is monetary phenomenon. It means that inflation is only caused by the increase of money supply. To prove the theory there are three dynamics model to be the selected i.e. the partial adjustment (PAM), the autoregressive Distributed Lag (ADL) and the Error Correction Model (ECM). The dynamics models is choosen because of time series data which are usually stockastic or non-stationary. With the ordinary least square method, we get three alternative models of inflation in Indonesia.