As an economic and technical point of view, operation of without operator or unmanned substations is of interest to power industry managers, so it is an opportunity to investigate cyber security carefully at this time. In this article, while studying the importance of SCADA (Supervisory Control and Data Acquisition) centers cyber security, the cyber security requirements of two types of DCS (Distribution Control System) and traditional substations and the communication of these types of substations and the corresponding SCADA center were examined. In this article, based on the documents and standards of industrial cyber security and power industry, the security requirements of substations and their communications with the relevant centers were extracted, and these requirements were prioritized based on knowledge of the industry and the importance of existing departments and processes. In addition, due to the non-implementation of security requirements in high power substations, it was emphasized to pay attention to the cyber security considerations of this area, such as preparing security risk management documents, paying attention to personnel training and receiving security approvals.