We give conditions for emergence of a giant cycle in a random permutation with a given number of cycles and obtain limit distributions of the maximum cycle lengths in all domains of variation of the parameters.In [1], a series of properties of a random permutation of the set X n D f1; : : : ; ng, which coincides with an arbitrary one-to-one mapping of the set X n onto itself with the probability .n!/ ¡1 , are given. In this paper, we consider the limit behaviour of the maximum lengths of cycles in a random permutation with a given number of cycles. On the base of the obtained results, we nd conditions for emergence of a giant cycle in such a random permutation.Let ¼ N;n be a random permutation of the set X n , which contains precisely N cycles and is uniformly distributed on the set of all permutations of X n with N cycles (it is clear that n¸N). Let´1; : : : ;´N denote the cycle lengths in a random permutation ¼ N ;n labelled in one of N! possible ways. Then, as shown in [1], the relation Originally published in Diskretnaya Matematika (2003) 15, No. 3, 145-159 (in Russian).