  We review our recent global analysis for probing the electroweak symmetry
breaking (EWSB) mechanism by the universal effective Lagrangian description.
After summarizing and commenting upon the current bounds for the EWSB
parameters, we focus on testing them at the forthcoming high energy colliders
such as the CERN LHC and the future linear colliders. We develop a precise
electroweak power counting method (a la Weinberg) and formulate the
longitudinal-Goldstone boson equivalence as a necessary criterion for
sensitively probing the EWSB sector. Armed with these, we systematically
estimate and classify the contributions of {all} next-to-leading order (NLO)
bosonic operators to various scattering processes at the high energy colliders.
The experimental signatures at these colliders are also analyzed. Furthermore,
the {complementarity} of different scattering processes via different colliders
for a complete probe of all these NLO effective operators is demonstrated.
