Waste is a problem faced in the worldwide. One strategic to minimizing the volume of waste is waste management at school or campus. The purpose of this crosssectional study was to examine the relationship between knowledge, attitude and behavioral intention of waste management among college student in Diploma Nursing and Midwife Pematangsiantar. The participants were composed of 228 nursing and midwife student, and they were selected by stratified random sampling from Diploma of Nursing and Midwife, Pematangsiantar. The data was collected by using questionnaires consisting of information, knowledge, attitude and behavioral intention. Spearman Rank Correlation was used to identify relationships between, knowledge, attitude and behavioral intention. The study found that the majority of participants (88,2%) with the average age was 20,27 years old. The major study was nursing (39,5 %) with the VI semester. Knowledge and attitude were related to behavioral intention (r=0.550, p<0,01; r=0.183, p<0,06) respectively. Students reported good knowledge, positive attitude, and high behavioral intention. The study suggested that student should maintain their behavioral intention towards waste management. Also, the institution should provide more information on campus about how to recycle waste into useful.