  This is the second paper in a series of investigations of the pluripotential
theory on Teichm\"uller space. The main purpose of this paper is to establish
the Poisson integral formula for pluriharmonic functions on Teichm\"uller space
which are continuous on the Bers compactification. We also observe that the
Schwarz type theorem on the boundary behavior of the Poisson integral. We will
see a relationship between the pluriharmonic measures and the
Patterson-Sullivan measures discussed by Athreya, Bufetov, Eskin and
Mirzakhani.
