The invention discloses a wall-mounted satellite adapter. The wall-mounted satellite adapter comprises a force-bearing cylinder, connecting plates, connecting boxes and a cover plate; the connecting plates are fixedly mounted on the peripheral side of the force-bearing cylinder, the connecting plates are used for providing mounting and separating positions for satellites, the connecting boxes areconnected with the two connecting plates adjacent to the connecting boxes and fixedly mounted on the peripheral side of the force-bearing cylinder, and the cover plate is fixedly mounted on the connecting boxes and used for sealing internal spaces of the connecting boxes. According to the wall-mounted satellite adapter, mounting connection and separation interfaces for the multiple satellites canbe provided in single-layer layout, the structure is simple, the structural weight is obviously decreased, the carrying capacity is improved, the satellite-rocket environment is improved, and the fairing space is saved.