  We estimate uncertainties of cosmological parameters for phenomenological
interacting dark energy models using weak lensing convergence power spectrum
and bispectrum. We focus on the bispectrum tomography and examine how well the
weak lensing bispectrum with tomography can constrain the interactions between
dark sectors, as well as other cosmological parameters. Employing the Fisher
matrix analysis, we forecast parameter uncertainties derived from weak lensing
bispectra with a two-bin tomography and place upper bounds on strength of the
interactions between the dark sectors. The cosmic shear will be measured from
upcoming weak lensing surveys with high sensitivity, thus it enables us to use
the higher order correlation functions of weak lensing to constrain the
interaction between dark sectors and will potentially provide more stringent
results with other observations combined.
