The present application discloses a reference signal configuration method, including: generating a reference signal, where the reference signal includes a first part and a second part, the first part and the second part have a same length, and a sum of a DC component of the first part and a DC component of the second part is zero; generating an enhanced directional multi-gigabit EDMG packet including the reference signal; and sending the EDMG packet. Embodiments of the present application further provide a reference signal configuration apparatus. According to the embodiments of the present application, a reference signal with a zero DC component can be obtained, thereby facilitating channel estimation that is based on CE.