In this paper, a bidirectional Y type optical cross-connect structure is introduced. It minimizes the number of 2 × 2 optical switches by utilizing the route characteristic of a bidirectional Y type OTN node. The method to satisfy this route request by our OXC is demonstrated. The wavelength utilizing efficiency between our structure and the nonblocking bidirectional Y type OTN node has also compared. The blocking, complexity, loss, loss uniformity and cross-talk characteristics are also demonstrated.