[en] J/ψ decay at Beijing Electron-Positron Collider (BEPC) is well known as the best place for looking for glueballs. But in fact it is also an excellent place for studying N^* and hyperon physics. For J/ψ → N Nbarπ and N Nbarππ, the πN and ππN systems are limited to be pure isospin ((1)/(2)) due to isospin conservation. This is a big advantage in studying N* resonances from J/ψ decays, compared with the πN and γN experiments which suffer difficulty on the isospin decomposition of 1/2 and 3/2. There are also plenty other decay modes of J/ψ involving baryon-antibaryon pairs plus mesons which can be used to study N* and hyperon resonances, e.g., looking for the 'missing' N* states from J/ψ → pbarpω, pbarpη', pK^-Lbar, etc.; studying N^*(1535) → ηp from J/ψ → pbarpη and studying Λ(1405) → Σπ from J/ψ → ΛSbar^-π⁺. It provides a new way to study the internal structure of baryon resonances. The newest progress and outlook in this field are presented