The effect of FeSe doping on the physical properties of MgB2 is studied. Bulk samples of the FeSe doped MgB2 with weight ratio x (FeSe : MgB2) = 0%; 3%; 7% and 10% were prepared by hybrid microwave method. It is proved that FeSe is not stable together with MgB2. Fe2+ enters into MgB2 lattice, some Mg2+ and Se2- are combined into the new impurity compound MgSe. The superconducting transition temperature (T-c) slightly decreased with increasing doping content of FeSe from R-T and M-T curves, which results from the substitution of Mg2+ by Fe2+ in the MgB2 lattice. The J(c) increase slightly with the FeSe doping content increasing from 3 wt % to 10 wt %, which results from the increasing MgSe impurity pinning centers. (C) 2017 Elsevier B.V. All rights reserved.