  AMS-02 provided the unprecedented statistics in the measurement of the
positron fraction from cosmic rays. That may offer a unique opportunity to
distinguish the positron spectrum coming from various dark matter (DM)
annihilation channels, if DM is the source of this positron excess. Therefore,
we consider the scenario that the DM can annihilate into leptonic, quark, and
massive gauge boson channels simultaneously with floating branching ratios to
test this hypothesis. We also study the impacts from MAX, MED, MIN, and DC
diffusion models as well as from isothermal, NFW, and Einasto DM density
profiles on our results. We found two parameter regions that can satisfy both
AMS-02 $\frac{e^+}{e^++e^-}$ and $\bar{p}/p$ datasets at 95\% CL. i) Under the
NFW-MIN combination with $M_{\chi}\subset[10,30]$ TeV. ii) Under the Einasto-DC
combination with $M_{\chi}\subset[500,1500]$ GeV.
