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Varying the Standard Model (SM) fermion Yukawa couplings universally by ageneric positive scale factor ($F_{Yu}$), we study the phenomenological fit tothe current available experimental results for the Higgs boson search at hadroncolliders. We point out that the Higgs production cross section and its decaybranching ratio to $\gamma\gamma$ can be varied oppositely by $F_{Yu}$ to maketheir product almost invariant. Thus, our scenario and the SM Higgs areindistinguishable in the inclusive $H\to \gamma\gamma$ channel. The currentmeasurements on direct Yukawa coupling strength in the $H\to b\bar{b}/\tau\tau$channel are not precise enough to fix the scale factor $F_{Yu}$. The mostpromising is the vector-boson-fusion channel in which the CMS has alreadyobserved possible suppression effect on the Yukawa couplings. Further more, theglobal $\chi^2$ fit of the experimental data can get the optimal value byintroducing a suppression factor $F_{Yu}\sim1/2$ on the SM Yukawa couplings.

Constraints on the Universal Varying Yukawa Couplings: from SM-like to Fermiophobic