A housing for repeater having an accommodation part accommodating therein a device for repeating an RF signal, and at least a portion of the housing is implemented with heat dissipation plastic having, at a frequency of 28 GHz, a relative permittivity of less than or equal to 4 and a thermal conductivity of greater than or equal to 3 W/mK. Accordingly, as the housing has a high heat dissipation performance against high heat generated from various types of devices provided inside the repeater for transmitting and receiving a signal in a high frequency band and minimizes the interference of transmission and reception of the signal in the high frequency band, the housing can be widely used as a housing for repeater in the mobile communication field or the like using a signal in a high frequency band.