Electronic device with multi-slot antenna

An electronic device with a multi-slot antenna is provided. The electronic device includes a first housing including a first side, a second side facing in a second direction opposite to the first direction, and a first lateral side surrounded by a portion of a space between the first and second sides, a second housing including a third side facing in a third direction and a fourth side facing in a fourth direction opposite to the third direction, a first conductive member forming at least a portion of the first lateral side and including a slot, an intermediate plate located inside the first housing and including a portion adjacent to a slot of the first conductive member, wherein the portion comprises or forms an opening facing in the first or second direction, and a wireless communication circuit electrically coupled to a portion of the first conductive member around the slot.