The plane landed and struck Ommy Irizarry, 36, and his daughter, Oceana, 9, who were walking along the beach.
Sarasota County Sheriff's Office spokeswoman Wendy Rose said Venice Municipal Airport officials reported a plane in distress yesterday.
The pilot of a 1972 Piper Cherokee radioed that he would be unable to make it back to the airport and that he was instead going to attempt a landing on Caspersen Beach.
While Irizarry died on the spot, his daughter was airlifted to All Children's Hospital. She is believed to be in critical condition, according to the sheriff's office.
The pilot and his passenger were uninjured. Both are from Englewood, Florida.
The National Transportation Safety Board and the FAA are investigating the incident.