  The observation of two charged bottomonium-like structures $Z_b(10610)$ and
$Z_b(10650)$ has stimulated extensive studies of the properties of $Z_b(10610)$
and $Z_b(10650)$. In this talk, we briefly introduce the research status of
$Z_b(10610)$ and $Z_b(10650)$ combined with our theoretical progress.
