The Orion region is expected to emit a large amount of diffuse gamma-ray radiation because of the large amount of interstellar medium in its surroundings. We modelled the AGILE data from that region through a template that quantifies the gamma-ray diffuse emission expected from atomic and molecular hydrogen, together with an isotropic contribution. In the excess map, appears an "arc-like" gamma-ray emission with high significance in the high-longitude part of Orion A, confirming previous results from Fermi-LAT. However, we do not think that this emission is correlated with some inaccuracy in the relation between H2 and CO fraction. We think that this emission could be due to Cosmic Ray acceleration in the Termination Shock of k-Orionis wind. Here we present a preliminary spectrum from the excess region and some preliminary attempts of CR acceleration models.