Mark Bridger has been charged with the abduction and murder of missing mid Wales schoolgirl April Jones.
Dyfed-Powys Police said the 46-year-old former lifeguard was also charged with perverting the course of justice.
5-year-old April was snatched from the Bryn-y-Gog estate in Machynlleth on Monday evening.
ITV News' Geraint Vincent reports:
Iwan Jenkins, the district crown prosecutor from the Crown Prosecution Service (CPS) in Wales, said:
Bridger will appear before Aberystwyth Magistrates' Court on Monday morning.
Chief Constable Jackie Roberts said in a press conference in Aberystwyth the investigation was "one of the most complex and fast moving inquiries in the history of our force".
Police said the hunt for missing April was continuing, despite today's announcement. Superintendent Ian John said:
April was seen to willingly get into what is believed to have been a Land Rover Discovery on Monday. Bridger was arrested on suspicion of abduction on Tuesday afternoon.
His Land Rover Discovery was also seized by police and is undergoing forensic examination.
Yesterday police announced Bridger had been arrested on suspicion of murder, indicating they no longer expect to find April alive.
They were yesterday granted a final 24 hours to question him.
Emergency services including the Coastguard, RNLI, RAF mountain rescue and 150 members of mountain rescue teams from across the UK have been searching since April vanished.