  Gravitational wave echoes can be used as a significant observable to
understand the properties of black holes horizon. In addition, echoes would
also closely relate to the unique properties of compact objects. In this work
we study the evolution of electromagnetic field and scalar field under the
background of novel black-bounce spacetimes. Our results show an obvious echoes
signal that can characterize the properties of novel black-bounce spacetimes,
and a detailed analysis about the characteristics of the echoes signal is
given. By studying the quasinormal ringdown of the three states of novel
black-bounce spacetimes, including black holes in $0<a<2 M$, the one-way
wormhole in $a=2M$ and the traversable wormhole in $a>2 M$, we find that the
echoes signal only appears when $a>2M$ in this spacetime, but when the
parameter $a$ increases to a threshold, the echoes signal will be transformed
into a quasinormal ringdown of the two-way traversable wormhole.
