This study was conducted at Technical-Vocational Schools in the Province of Rayong, Thailand.The objectives of this study were to investigate the public relations of the 10 Technical-Vocational Schools,public and private theircommunication management andthe relationship between the levels of practices in public relations and the degree of communication management by schools. The participants were asked to answer and complete the survey questionnaires to reveal their public relations practices and degree of communication management.The findings revealed that public relations are sometimes practiced that age, length of service, and type of job of respondents are significant determinants of their levels of practice but not by their sex, and highest educational attainment that management of communication was oftentimes done for internal and external use, staff management and for making mass media effective that the degree of communication management is not significantly determined by sex, age, highest educational attainment, length of service, and monthly income of the respondents but is significantly determined by their school assignment. In addition, the level of public relation practices in the public and private technical and vocational schools are not significantly influenced by the degrees of communication management.The researcher provided the recommendations for the administrators and teachers for their public relations practices towards students, parents and stakeholders to develop a program that would encourage and engage the community to cooperate with the schools.