South Africa is the host country,but how?

Africa was chosen as the host for the 2010 World Cup as part of a new policy to rotate the event between football confederations (which was later abandoned in October 2007). Five African nations placed bids to host the 2010 World Cup:

•  Egypt
•  Libya /  Tunisia (co-hosting)
•  Morocco
•  South Africa

Following the decision of the FIFA Executive Committee not to allow co-hosted tournaments, Tunisia withdrew from the bidding process. The committee also decided not to consider Libya's solo bid as it no longer met all the stipulations laid down in the official List of Requirements.
After one round of voting, the winning bid was announced by FIFA president Sepp Blatter at a media conference on 15 May 2004 in Zürich. South Africa was awarded the rights to host the tournament, defeating Morocco and Egypt.

Voting Results
Country	Votes
South Africa	14
Morocco	10
Egypt	0

•  Tunisia withdrew on 8 May 2004 after joint bidding was not allowed.

•  Libya bid was rejected: bid did not meet the list of requirements and joint bidding was not allowed.