Deepening reform of basic education and effective normative development is related to the understanding and implementation of policies by class teachers in primary and secondary schools as well as their professional development. Under the background of “Double Reduction”，a survey of head teachers in primary and secondary schools in Beijing showed that they are experiencing disturbances in understanding the “Double Reduction”，which requires rational understanding；among other sources of pressure for head teachers，“prolonged hours” and “excessive chores” resulted from “double reduction” are prominent problems concerning their physical and mental health；after implementing “double reduction”，head teachers feel obligated and compulsory to provide family education guidance，not without certain difficulties；in addition，schools only provide mediocre support for head teachers in implementation. To change the situation，we need to focus on two aspects：first，to protect the rights and interests of head teachers，reduce their burden and mobilize their enthusiasm for “double reduction”；second，to promote professional development of head teachers and mobilize their creativity in “double reduction”.