The 47-year-old model took to Instagram on Saturday to mark almost two decades since the couple got married in the Turks and Caicos Islands in 2009.
Emma shared a sweet shot from their nuptials of Bruce carrying his wife on a beach with the caption: "I was made to love him. 17 years."
Their anniversary comes two days after Willis - who has frontotemporal dementia (FTD) - turned 71, with Heming Willis paying a birthday tribute to him on Instagram.
"This journey with frontotemporal dementia (FTD) has opened my eyes to the realities so many families face. It's what inspired me to create The Emma + Bruce Willis Fund to raise awareness of FTD, support research, and stand beside the caregivers who carry so much every day," she wrote.
"If you'd like to honour Bruce today, please consider supporting the fund or another organisation working in this space, or simply checking in on a caregiver - a small act of kindness that can mean so much."
Willis retired from acting in 2022, after he was diagnosed with aphasia - a language disorder that affects a person's ability to speak, understand, read or write.
In 2023, his condition progressed to FTD - a group of brain disorders affecting personality, behaviour, and language.
Heming Willis - who has daughters Mabel, 13, and Evelyn, 11, with Willis - said he was unaware he has dementia.
"I think that's like the blessing and the curse of this, is that he never connected the dots that he had this disease, and I'm really happy about that. I'm really happy that he doesn't know about it," she said in January.
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