It has been known that the effects of acoustics parameters of the room on auditory perception were diverse and even critical in some population groups. Public regulation on classroom acoustics has emerged as one of the concerned issues in educating children and the hearing impaired. The purpose of this study was to review the effects of acoustic parameters, such as reverberation time, acoustic insulation, and acoustic absorption, on speech perception in classroom. An exemplary regulation suggested from ANSI (S12.60, 2002) and related assessment tools were analyzed as well with special reference to adapting appropriate guidelines to domestic environments. In conclusion, it seemed now imperative that the related authority should establish effective acoustic requirements and guidelines for schools since ample data showed that the young children with hearing problem were prone to be at risk of learning opportunities. The reviewed parameters were dominant physical variables of speech intelligibility in classroom acoustics and this analysis might help to resolve issues on implementing acoustic regulation on classroom acoustics in the future. KEY WORDS：Classroom acoustics·Reverberation time·Absorption coefficient·Transmission loss·Speech perception