"Please stop time. My arms will try to hold you for as long as they can 💗," she captioned the sweet shot.
Fans fell in love with the photo which swiftly racked up more than 25,000 likes and hundreds of comments.
One user wrote: "Forever cherishing those mother daughter moments❤️ beautiful picture! @tamminsursok time flies by fast doesn’t it? you have a wonderful and beautiful family💙"
Tammin shares Phoenix with her actor-director husband Sean McEwen, who she married in Florence, Italy in August 2011.
The longterm couple welcomed their second child, daughter Lennon Bleu, in January.