In order to ensure the rapid recognition of other people's behaviors in underground garage and to improve user's sense of security and comfort, the experimental methods combining actual measurement and subjective evaluation are adopted for the inadequacies of the evaluation indicators in the current garage lighting standards and to investigate the light environment of the underground garage in Area B of Chongqing University. By analyzing measured data and evaluation results, Facereader software is used for verification. With referring to the standard values of outdoor lighting, from the perspective of identifying other people actions, it's presented semi-cylindrical illumination is a main indicator for evaluating garage lighting, and the scope of application of stereoscopic indicators is summarized. It is suggested that the semi-cylindrical illumination and stereoscopic indicators should be considered in the design of underground garage. The scope of application of the index suggests that the underground garage semi-cylindrical illumination should be no less than 6.5 lx, and the stereoscopic indicator should be no less 0.75 to achieve safe anti-infringement lighting. The research also haves important reference significance for the evaluation of lighting quality in similar dark indoor public spaces.