Recent data from PAMELA, ATIC and FERMI-LAT have shown that there are excesses in cosmic electro/position. One of the popular explanations is that these excesses are from dark matter annihilation in our galaxy. Many dark matter models have been proposed. In this talk, I will discuss how different models of dark matter, which can explain current data, can be distinguished by studying other cosmic rays, such as gamma and neutrino rays. A specific model will be constructed and details explained.