  The Alpha Magnetic Spectrometer (AMS), to be installed on the International
Space Station, will provide data on cosmic radiations in the energy range from
0.5 GeV to 3 TeV. The main physics goals are the anti-matter and the dark
matter searches. Observations and cosmology indicate that the Universe may
include a large amount of unknown Dark Matter. It should be composed of non
baryonic Weakly Interacting Massive Particles (WIMP). In R-parity conserving
models a good WIMP candidate is the lightest SUSY particle. AMS offers a unique
opportunity to study simultaneously SUSY dark matter in three decay channels
resulting from the neutralino annihilation: e+, antiproton and gamma. Either in
the SUSY frame and in alternative scenarios (like extra-dimensions) the
expected flux sensitivities as a function of energy in 3 year exposure for the
e+/e- ratio, gamma and antiproton yields are presented.
