Martel is a niche film-maker who has made four movies, most recently 2017's "Zama." This year, she directed "Cornucopia," an elaborate New York concert show by Icelandic singer Bjork.
Venice festival director Alberto Barbera hailed her as "Latin America's most important female director, and one of the top worldwide."
Her films are "dedicated to exploring the mysteries of female sexuality and the dynamics of groups and classes," Barbera said in a statement.
"It's an honour, a responsibility, and a pleasure to be a part of this celebration of cinema, of humanity's immense desire to understand itself," Martel was quoted as saying in the same statement.
Venice hosts the world's oldest film festival, established in 1932, and this year's edition is scheduled to run from August 28 to September 7.
Venice festival director Alberto Barbera hailed her as "Latin America's most important female director, and one of the top worldwide."
Her films are "dedicated to exploring the mysteries of female sexuality and the dynamics of groups and classes," Barbera said in a statement.
"It's an honour, a responsibility, and a pleasure to be a part of this celebration of cinema, of humanity's immense desire to understand itself," Martel was quoted as saying in the same statement.
Venice hosts the world's oldest film festival, established in 1932, and this year's edition is scheduled to run from August 28 to September 7.