The non-Bohn-Oppenheimer approximation Schrodinger equation is solved numerically. The H+2 molecule harmonic radiation and distribution driven by the spatial inhomogeneous field are investigated theoretically. Results show that when the laser field is positive, the contribution from the negative-H to harmonic radiation is higher than that from the positive-H, and when the laser field is negative, the contribution from the positive-H to harmonic radiation is higher than that from the negative-H. The harmonic cutoff energy increases when the laser spatial position is far away from the origin. When the laser space position is negative, the contribution of negative-H to the higher harmonics decreases obviously. By analyzing the ionization probability, time-frequency analysis of harmonic radiation, the harmonic radiation process is explained by electronic wave packet motion. A 45 as ultrashort pulse can be obtained by superposing harmonics.