Yes, the iPhone12 supports wireless charging, and all versions since the iPhone8 support wireless charging.
Apple iPhone12 series mobile phones support wireless charging, iPhone12 series mobile phones are iPhone12, iPhone12mini, iPhone12Pro, iPhone12ProMax four models, support 20W wired second charge and 15W wireless charge.
3iPhone12 mobile phone to use wireless charging, you need to use MagSafe wireless charging or Qi wireless charging. If the charge is wired, you need to use a power adapter with 20W or more power.