This paper aims to analyze the implementation status of instructional leadership of a HK primary school that benefits in mid-ranking and mainly uses instructional leadership to develop their curriculums. Instructional leadership is the result of introducing leadership concepts into the teaching field, and it reflects the changing trend of school management to a certain extent. At present, the research on instructional leadership is limited to the principal's leadership, which limits the overall function of instructional leadership. By investigating the actuality of school and the implementation of school policies and programs, the paper deeply analyzes the existed problems in a Hong Kong school and offers optimization suggestions: strengthen the school distributive leadership construction, promote the professional development of teachers and curriculums, establish a diversified evaluation system, develop an organizational culture of democratic cooperation and improve the curriculum leadership of principals.