Prime Minister Nguyen Xuan Phuc said on Thursday that the Ministry of Health and Government Office should draw up specific guidelines for the purpose.
No details of how or from whom they will mobilize funds are known yet.
Vietnam plans to procure 150 million doses from British-Swedish firm AstraZeneca, global vaccine access mechanism Covax and domestic producers by 2022, the ministry has said.
The first batch of 117,600 doses from AstraZeneca was delivered on Wednesday.
Hanoi has decided it will provide free vaccination, and estimates it will need 15 million doses to vaccinate everyone above 18.
The northern port city Hai Phong plans to acquire more than two million doses.