Claudia Webbe, the MP for Leicester East, has been charged with an offence of harassment against one female, the Crown Prosecution Service (CPS) said.
Webbe, 55, will appear at Westminster Magistrates’ Court on November 11.
She is accused of carrying out the harassment between September 1 2018 and April 26 this year.
Webbe said she is “innocent of any wrongdoing” and that she will “vigorously” defend herself in court.
It is understood Webbe has been suspended from the Labour Party pending the outcome of the case.
A Labour Party spokesperson said: “It would not be appropriate to comment on an ongoing case.”
In a statement on Monday, Jenny Hopkins of the CPS, said: “The CPS has today decided that Claudia Webbe, MP for Leicester East, should be charged with an offence of harassment against one female.
“The CPS made the decision after receiving a file of evidence from the Metropolitan Police.
“Criminal proceedings against Ms Webbe are now active and she has the right to a fair trial.
“It is extremely important that there should be no reporting, commentary or sharing of information online which could in any way prejudice these proceedings.”
This article originally appeared on HuffPost UK and has been updated.