The purpose of this research is to know how environmental cleanliness condition especially in SMAN 1 Krian, Indonesia, and to know the influence of school environment cleanliness condition to improve students learning motivation, and also to know persons that play role in maintaining cleanliness in school environment. This research is used descriptive method that is research obtained from the existence of research objects. The subject in this study are 50 students of SMAN 1 Krian, Indonesia. Data analysis techniques in research is a simple statistical research techniques used in analyzing data distribution techniques. Then the authors begin to calculate the amount of data, after that the authors classify the answers of each question on the questionnaire based on the number of respondents who choosed. The results showed that the positive response of students towards school environment cleanliness can improve students learning motivation. It can be seen that the condition of SMA Negeri 1 Krian has been considered clean by 70% of students while 30% of the sample believes still not clean. Beside that, most students can not concentrate on learning if the classroom that occupied it dirty. The percentage of student responses was about 76% who could not concentrate and about 24% were still able to concentrate to study in class.