Lucas earned around $4.05 billion (£2.5bn) in a deal with Disney that was announced on Tuesday (October 30).
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"George Lucas has expressed his intention, in the event the deal closes, to donate the majority of the proceeds to his philanthropic endeavors," a Lucasfilm spokesperson told The Hollywood Reporter.
Lucas is the sole owner of the company, which is believed to have little or no debt.
He established the George Lucas Educational Foundation in 1991. The foundation - also known as Edutopia - aims to foster innovation in schools.
It was also announced yesterday that further Star Wars movies will be commissioned by Disney under the deal.
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