The comedian was arrested in October and questioned by police yesterday (December 13) over a complaint made by former partner Anna Larke.
Officers say that the charge relates to "causing fear that violence will be used".
"Justin denies the charge that has been brought against him. He is shocked and upset by it," a spokesperson told The Mirror.
"He is unable to comment on the circumstances and events to which the charge relates because of the proceedings, but he is confident that he will prove his innocence."
Collins, who is currently appearing in West End musical Rock of Ages at the Shaftesbury Theatre, is due to appear at St Albans Magistrates' Court on Wednesday, December 22.
The Sunday Night Project star split with his wife of seven years in February.
> Justin Lee Collins 'would work with Carr again'