The original sitcom aired on the Disney Channel 2001-04.
The followup show was announced at Friday's D23 Expo in Anaheim, Calif.
"SURPRISE!!! I've been trying to contain this excitement for a loooong time while this has been in the works! I am beyond excited to be home again, back with my girl ...and into her 30's," Duff, 31, wrote on Instagram.
"#bringbackbutterflyclips #lizziemcguire #thisiswhatdreamsaremadeof #lizzieforpresident #DisneyPlus #D23Expo ..... Also, If you needed yet another reason to get Disney+ ....the #lizziemcguiremovie will be living there!"
Disney+ is scheduled to go live on Nov. 12.
A brand new Lizzie McGuire series starring Hilary Duff is coming exclusively to @disneyplus! Get the details here: https://t.co/2Lr3g7ABNC #DisneyPlus pic.twitter.com/gzmxKlpyGC— Disney (@Disney) August 24, 2019
Copyright 2019 United Press International, Inc. (UPI). Any reproduction, republication, redistribution and/or modification of any UPI content is expressly prohibited without UPI's prior written consent.