  The temperature dependence of the $\phi$ meson mass and its decay width
($\phi \rightarrow K \bar{K}$)have been studied from an effective non-linear
chiral Lagrangian in $SU(3)$. Effective mass has been obtained from the pole
position of the full propagator. The width has also been calculated. It has
been found that the mass decreases with temperature very slowly whereas the
decay width increases quite sharply. Possible consequence on the QGP signals is
discussed.
