Bola Na Lesa complete job with 1-0 win over Malawi at Heroes Stadium via a Fashion Sakala 39th minute goal.
Zambia Under-23 through 2-0 on aggregate and now face winner between Congo Brazaville and Burundi for a place at the 2019 Under-23 Africa Cup in Egypt.
The top three teams in Egypt qualify to the Tokyo 2020 Olympics.
Zambia is aiming to go to the Olympics for the first time since 1988.
What were your impressions of the match today?
Fans man of the match: Malawi goalkeeper Brighton Munthali-what a talent!