The matches will be played at the Hai Dang Tennis Club from June 16 to 19, according to the International Tennis Federation (ITF).
The Vietnamese team, ranked 71st in the world, will play Hong Kong (68th), Syria (76th), Sri Lanka (78th), Kuwait (110th), Qatar (111th), Jordan (120th), Pacific Oceania (122nd) and Malaysia (127th).
The fixture list has yet to be announced.
All foreign teams will be quarantined for 14 days on arrival.
Vietnamese coach Truong Quang Vu will pick four players for the tournament in May.
Vietnam have been in Group III since 2003. After topping it in 2018, they failed to get promotion to World Group II after losing 4-0 to Morocco in the play-offs last March.
With home advantage, Vietnam again hope to reach the play-offs next year.