The second author has shown that Carlitz's q-Bernoulli numbers can be represented as an integral by the q-analogue of the ordinary p-adic invariant measure (see [1-4]). In this paper, we consider the p-adic q-L-function which can be given an explicit p-adic expansion of np∑j=1(j,p)=1 [j]-r as a power series in n.