  The aim of this paper is to introduce the notion of a mock-Lie bialgebra
which is equivalent to a Manin triple of mock-Lie algebras. The study of a
special case called coboundary mock-Lie bialgebra leads to the introduction the
mock-Lie Yang-Baxter equation on a mock-Lie algebra which is an analogue of the
classical Yang-Baxter equation on a Lie algebra. Note that a skew-symmetric
solution of mock-Lie Yang-Baxter equation gives a mock-Lie bialgebra. Finally,
the notation of $\mathcal O$-operators are studied to construct skew-symmetric
solution of mock-Lie Yang-Baxter equation.
