The prince,fifth in line to the throne（第五顺位继续人）, will marry Ms Markle in spring 2018 and they will live at Nottingham Cottage in Kensington Palace, London.
The couple, who have been dating since the summer of 2016, secretly got engaged earlier this month. At the end of the year, Harry made a statement opening the couple's relationship and accusing some gossip media, because they harassed his girlfriend and their families for digging up "Great dirt."
They posed for photographs outside Kensington Palace, with Prince Harry saying he was "thrilled" and it had been a romantic?proposal.
A smiling Ms Markle, wearing a white belted coat, held Harry's hand as they appeared briefly for the press at the palace's Sunken Garden, and showed off her diamond engagement ring.
Asked by a reporter when he knew Ms Markle "was the one", Prince Harry said: "The very first time we met".
As soon as the news was announced, the British royal family and all walks of life responded promptly. The Queen of England and the Duke of Edinburgh said they were "pleased with the couple and wish them." Harry's older brother and sister-in-law, Prince William and Kate, said they were "excited about Harry and Megan." British Prime Minister Theresa·May also sent the "best wishes" to the couple.