  We computed the $\Sigma^{-}\to n\pi^+e^-\ell^-$ ($\ell=e,\mu$), $\Xi^-\to
\Lambda\pi^+e^-e^-$, and $\Lambda\to p\pi^+e^-e^-$ lepton number violating
(LNV) hyperon decays mediated by a resonant Majorana neutrino. The expected
hyperon production rate of experiments like BES-III of around $10^6-10^8$ may
allow searching for these rare hyperon decays at enough sensitivities. We
illustrate the limits on the new heavy mixing parameters derived from these
hyperon channels and compare them with other LNV meson decays in similar mass
regions of the resonant neutrino state.
