This study noted that the conflict between parents and teachers is caused by distrust of each other, which it may arise from due to differences between expectations and perceptions of each other. This study analyzed what parents' expectations and perceptions of school teachers were, focusing on previous studies. The results of the study were as follows. First, teachers expected by parents include ‘teachers who understand the characteristics of students well and satisfy individual needs’, ‘teachers with professional knowledge and skills’, and ‘teachers who communicate with parents in equal and partnership’. Second, teachers perceived by parents include ‘teachers who do not know students well’, ‘teachers who do not help students’, and ‘teachers who want parents' help but dislike to interfere.’ The results indicated that there is a significant gap between parents' expectations and perceptions of teachers. Based on the results, discussion for parent-teacher cooperation and suggestions for future research were presented.