The investigation on the interaction between femtosecond laser filaments in air and negative corona discharge in the needle-plane electrode is reported. The spatial distribution of electric field of the interaction is theoretically simulated and the phenomena of laser guided negative corona is observed experimentally during the interaction process. The setup is established to understand this process. Both the simulation and experiment results show that the electric field distributions with the strength higher than the threshold for avalanche ionization do exist during the interaction process. As a consequence negative corona is guided at the end of laser filament. The negative corona area can be altered through the control of filament length, which provides a new method to optically guide negative corona.