A fan vibration absorption structure applied to a fan set having a first side and a second side respectively having multiple first and second fixing holes. The fan vibration absorption structure includes: a housing for receiving the fan set; a first frame body having multiple first through holes on the first side without contacting therewith, a first gap being defined between the first frame body and the first side, the first frame body having multiple first locating sections each having a first perforation, a second gap being defined between the first locating section and the housing; multiple first assembling member each having a first engagement section clamped between the first frame body and the first side to form the first gap; and multiple second assembling members each having a second engagement section clamped between the first locating section and the housing to form the second gap.