Labour MP Claudia Webbe has been charged with an offence of harassment, the Crown Prosecution Service said.
The representative for Leicester East, who was elected at the 2019 December general election , is due to appear at Westminster Magistrates’ Court on 11 November.
In a statement, 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."
The CPS said Ms Webb, 55, faces once count of harassment between 1 September 2018 and 26 April 2020.
Responding to the decision from the CPS, the Labour MP said: “I am innocent of any wrongdoing and look forward to proving this in court. I will be vigorously defending myself against these claims.”
Ms Webbe, formerly an Islington councillor and member of Labour’s National Executive Committee (NEC), became an MP just last year after the long-standing MP Keith Vaz resigned his seat at the winter election.
She previously ran to be an MP in the Lewisham East by-election in 2018 and prior to that was a policy adviser to the former mayor of London, Ken Livingstone.