This paper deals with a two-dimensional problem of a loaded circular hole in an infinite piezoelectric composite plate by use of the complex variable method. First, we give the Green function for a generalized point load acted at an arbitrary point at the rim of the hole, and then derive a general solution for the case of arbitrarily distributed mechanical and electric loading on the hole surface based on the superposition principle. In general, the solution is in form of series, but its novel feature is that the coefficients involved in the solution can be easily written out once the distributed loading on the hole surface is given.