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We study cosmic-ray anomaly observed by PAMELA based on E_6 inspired extraU(1) model with S_4 x Z_2 flavor symmetry. In our model, the lightest flavonhas very long lifetime of O(10^{18)) second which is longer than the age of theuniverse, but not long enough to explain the PAMELA result ~ O(10^{26}) sec.Such a situation could be avoidable by considering that the flavon is not thedominant component of dark matters and the dominant one is the lightestneutralino. With appropriate parameter set, density parameter of dark matterand over-abundance of positron flux in cosmic-ray are realized at the sametime. There is interesting correlation between spectrum of positron flux andV_{MNS}. No excess of anti-proton in cosmic-ray suggests that sfermions areheavier than 4 TeV and the masses of the light Higgs bosons are degenerated.

Two Component Dark Matters in S_4 x Z_2 Flavor Symmetric Extra U(1) Model