The accurate P-branch emission spectra of the (0, 0) band in the 2Δ3/2-12Δ3/2 system of the VO molecule are studied in this work using the analytical formula derived by Sun group in their previous work. The calculated results generate correct values of the unknown spectral lines up to J=80.5 which are not available experimentally for this band, as well as reproduce all known experimental spectral lines accurately.