Abstract: Abstract: Collider experiments provide a well-controlled testing ground for elementary particle physics with broad scope. Given the Higgs boson discovery at the LHC in 2012 and the necessary advance in planning for future collider experiments, this is the high time to discuss their Higgs physics potential, which is very complementary to the LHC. In this talk, I will discuss recent developments in Higgs coupling precision measurements, angular asymmetries constructed to extract different tensorial structures of Higgs interactions, and a comparative study of the potential in measuring BSM Higgs-top quark effects. I will also discuss the corresponding implications for several representative new physics models from these Higgs measurements.