Jo Wood has been granted a decree that is the first of two stages of divorce.
The divorce becomes final after six weeks and a day.
The 62-year-old guitarist married the 54-year-old former model in 1985 and they have two children together.
They split last year after the musician began a relationship with Russian Ekaterina Ivanova. The affair was widely covered in Britain's tabloid press.
Neither Jo nor Ronnie was present at London's High Court Wednesday for the granting of the divorce.