The man allegedly beat the twelve year old-girl to death at a home in Palisi, Apia.
He is now at Tanumalala Prison awaiting a court appearance later next month.
Meanwhile, a family dispute in Savai'i led to the death of a 29 year-old man. His brother in law has been arrested and charged with murder.
The accused has been held in custody at Tanumalala Prison and will appear in court on February 6.
In a separate incident, a man is in custody charged with murder after an off-duty female police officer was shot dead.