  Two gravitational wave events, i.e. GW200105 and GW200115, were observed by
the Advanced LIGO and Virgo detectors recently. In this work, we show that they
can be explained by a scenario of primordial black hole binaries that are
formed in the early Universe. The merger rate predicted by such a scenario
could be consistent with the one estimated from LIGO and Virgo, even if
primordial black holes constitute a fraction of cold dark matter. The required
abundance of primordial black holes is compatible with the existing upper
limits from microlensing, caustic crossing and cosmic microwave background
observations.
