  An inflation model with inverse symmetry breaking of two scalar fields is
proposed. Constraints on the parameters for a successful inflation are
obtained. In general the inequality $\lambda_1\ll g <\lambda_2$ should be
satisfied, where $\lambda_{1,2}$ and $g$ are the coupling constants for self
interaction and mutual interaction of two scalar fields respectively. An
example with $SU(5)$ GUTs phase transition and numerical study are presented.
This model introduce a new mechanism for the onset of inflation.
