In response to the improper agriculture waste management, governments in Southeast Asia have sought to improve the management by introducing public standards of good agricultural practices (GAP) by examining its effectiveness in raising the awareness and improving practices of participant farmers toward better food safety and quality assurance because it has been highlighted that agriculture waste are one of the factors that contribute to the degradation of environmental quality especially in highland areas. The study area took place in different districts in Cameron Highlands which were Tanah Rata, Brinchang, Tringkap and Kuala Terla. The purpose of this paper is to develop a scale to determine the farmers’ perception on GAP and to identify the factors affecting the farmers’ perception of GAP in Cameron Highlands. For this research study, survey by using questionnaire is used where it contains two sections which were part A is demographic profile and part B were divided into four sections where the knowledge, practices, awareness and perception were included and the results were analysed by using reliability test, independent sample t-test, and correlation analysis.. For this finding, the farmers’ perception on GAP and the factors affecting the farmers’ perception of GAP were determined.