Miniversal deformations for pairs of skew-symmetric matrices under congruence are constructed. To be precise, for each such a pair eada25da5118318c42" title="Click to view the MathML source">(A,B) we provide a normal form with a minimal number of independent parameters to which all pairs of skew-symmetric matrices , close to eada25da5118318c42" title="Click to view the MathML source">(A,B) can be reduced by congruence transformation which smoothly depends on the entries of the matrices in the pair . An upper bound on the distance from such a miniversal deformation to eada25da5118318c42" title="Click to view the MathML source">(A,B) is derived too. We also present an example of using miniversal deformations for analyzing changes in the canonical structure information (i.e. eigenvalues and minimal indices) of skew-symmetric matrix pairs under perturbations.