"We should sit down to serious talks with the Germans and together think about how to deal with the issue" of reparations, Witold Waszczykowski told the local commercial RMF radio station.
"How can we deal with the fact that Germany's 1939 attack (on Poland) and unresolved post-war issues still cast a shadow on Polish-German relations?" he said.
Warsaw was "preparing" its formal position on WWII reparations, Waszczykowski said, without specifying when it would be made public.
Polish Interior Minister Mariusz Blaszczak on Saturday said Warsaw could claim one trillion dollars from Germany.
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Poland's rightwing government disputes the validity of a 1953 resolution by Warsaw's then communist authorities, who dropped claims against Germany, insisting the deal was struck under the diktat of the Soviet Union.
Jaroslaw Kaczynski, the powerful leader of Poland's governing conservative Law and Justice (PiS) party, has accused Germany of shirking its responsibility for the massive wartime damage it inflicted on his country.
According to a survey by the independent Ibris pollsters published late last month, 51 percent of Poles oppose any reparations claims against Germany, while 24 percent believe claims ought to be made.