The recent studies on radiative and electroweak penguin decays by the Belle experiment are reported.
These new measurements are based on the Belle full data set of 772 \(\times 10^6 B\bar{B}\).
All the measurements of \(B\to K^{*}\gamma\) are most precise to date and
the first evidence of isospin violation in \(b\to s\gamma\) decay with a significance of 3.1 \(\sigma\).

Lepton flavor dependent angular analysis of \(B\to K^{*}\ell^+\ell^-\) decays, where \(\ell\) is either \(e\) or \(\mu\),
and results of search for lepton flavor violating process of \(B^0 \to K^{*0}\mu e\) and the rare decays of \(B\to h^{(*)}\nu\bar{\nu}\),
are presented.