  We discuss the superconformal quantum mechanics arising from the M2-branes.
We begin with a comprehensive review on the superconformal quantum mechanics
and emphasize that conformal symmetry and supersymmetry in quantum mechanics
contain a number of exotic and enlightening properties which do not occur in
higher dimensional field theories. We see that superfield and superspace
formalism is available for $\mathcal{N}\le 8$ superconformal mechanical models.
We then discuss the M2-branes with a focus on the world-volume descriptions of
the multiple M2-branes which are superconformal three-dimensional Chern-Simons
matter theories. Finally we argue that the two topics are connected in
M-theoretical construction by considering the multiple M2-branes wrapped around
a compact Riemann surface and study the emerging IR quantum mechanics. We
establish that the resulting quantum mechanics realizes a set of novel
$\mathcal{N}\ge 8$ superconformal quantum mechanical models which have not been
reached so far. Also we discuss possible applications of the superconformal
quantum mechanics to mathematical physics.
