The effect of reagent vibrational and rotational excitation on the stereodynamics in the chemical reaction C+OH at the collision energy of 1.0 eV has been carried out by using the quasi-classical trajectory method. The vector property of different vibrational and rotational states has been discussed in detail. The results suggest that the vibrational and rotational excitation of OH are very sensitive to the vector property of the C+OH reaction, which is different from the study of the scalar property of the C+OH reaction.