The 24-year-old mother originally told police that a man tried to snatch her baby from his stroller Tuesday evening on Fulton Avenue in Hempstead.
She also told police that a struggle ensued with the suspect, at which time he threw the child to the pavement and ran away.
Police said the woman actually made up the story to cover up the fact that the child was unrestrained in his stroller and fell out. The boy suffered scrapes to his face and a large contusion on his forehead.
Jeymi Guerra Cordova, of Hempstead, allegedly admitted to lying during a re-interview with police.
She was charged with making a punishable false written statement.