Moral assessment is a complex and meticulous work, which requires the combination of moral
knowledge assessment and explicit behavior assessment, and at the same time it requires its method
to be easy to operate in practice. The sixth grade students conducted a questionnaire survey for the
research object. Combined with the development and change records of students’ moral quality in the
implementation of the project in recent years, the research found that: (1) the overall trend of moral
quality development of students in project schools is good. With the increase of grade, the score of moral
quality assessment is higher. However, the fifth grade of primary school fluctuates, which is a critical
period for the development of moral quality of primary school students; (2) Girls are better than boys in
all the indicators of moral character and the total score, especially in the dimension of moral character
including charity and non-violence, girls have the highest score; (3) Urban school students’ score
higher than urban primary school students in the development of moral character, and the difference is
significant.