The 32-year-old utility back - who made his Test debut against Wales in 1991 - will join the province in the next two weeks, penning a short-term deal for the remainder of the season.
Samoa's top try scorer (23), Apia-born Lima has lined out for the Auckland Blues, Otago Highlanders, Stade Francais and Gloucester in a career which has spanned four World Cups.
Lima - whose signing is subject to medical clearance and a relevant work permit - left Japanese club Secom last year, and has been unattached for a number of months.
Coach Alan Gaffney insisted: "I am very happy with the quality of player we have been able to nominate. Frank Murphy is a player who I believe has a lot to offer and he fully deserves this opportunity.
"Brian Lima is of course one of the great names in world rugby and I think Munster supporters will have seen exactly what he is capable of in that North-South game at Twickenham last weekend.''