The tournament runs Aug. 11-16 in Breclav, Czech Republic and Piestany, Slovakia.
Laxdal coached the Oil Kings to the Memorial Cup championship last month. It was the second time in his four seasons he led Edmonton to the Canadian Hockey League championship tournament.
Canada will hold training camp Aug. 2-5 in Calgary.
Canada has won the summer under-18 tournament six straight years and 16 times in the past 18 years.