  GX 301-2 provides a rare opportunity to study both disk and wind accretion in
a same target. We report Insight-HXMT observations of the spin-up event of GX
301-2 happened in 2019 and compare with those of wind-fed state. The pulse
profiles of the initial rapid spin-up period are dominated by one main peak,
while those of the later slow spin-up period are composed of two similar peaks,
as those of wind-fed state. These behaviors are confirmed by Fermi/GBM data,
which also show that during the rapid spin-up period, the main peak increases
with luminosity up to $8\times10^{37}$ erg s$^{-1}$, but the faint peak keeps
almost constant. The absorption column densities during the spin-up period are
$\sim1.5\times10^{23}$ cm$^{-2}$, much less than those of wind-fed state at
similar luminosity ($\sim9\times10^{23}$ cm$^{-2}$), supporting the scenario
that most of material is condensed into a disk during the spin-up period. We
discuss possible differences between disk and wind accretion that may explain
the observed different trend of pulse profiles.
