Over 560 athletes will compete in 80 medal events across six sports - alpine skiing, biathlon, cross-country skiing, ice hockey, snowboard and wheelchair curling.
The ceremony itself, after the athlete parade, was sprayed with flashes of colour and featured a young girl directing illuminated fish as they swam in the arena floor, joyful children on sledges and boats, giant snowmen and a skateboarding mascot.
One of the most memorable moments featured a DJ on a large wooden wheel lifted into the air to the sound of K-pop, the modern genre of pop music famous in Korea.
International Paralympic Committee president Andrew Parsons impressed the crowd by greeting them in Korean at the start of his speech, adding "Paralympic sport not only changes lives but changes the world".
The Winter Paralympics will run from March 9 to 18.