  The successful application of $\alpha$-induction to the conformal field
theory has given rise to many amazing results. For example, the classification
of conformal nets in the discrete series. In this paper, however, we study
$\alpha$-induction of graded local conformal nets. The main difference lies
between locality in the conformal net cases and graded locality in the graded
local conformal net cases. We show that the inclusions of graded local
conformal nets give braided subfactors. We check that the $\alpha$-induction is
still valid in terms of graded local conformal nets. Moreover, the simple
current extension originally defined in terms of conformal nets still works for
graded local conformal nets. Consequently, we give a shorter proof of
classification of $N=2$ superconformal nets in the discrete series according to
Gannon's list.
