Hampshire police’s roads policing unit said he was picked upon a hired scooter in the city.
They said he gave a breathalyser reading of 79 – twice the limit of 35 micrograms of alcohol per 100 millilitres of breath.
Officers added: ‘Rider charged to court and contemplating how he will drive for work.’
The e-scooter hire scheme in Portsmouth is run by Voi, which states terms and conditions for anyone renting them.
Among the rules is the requirement: ‘To not use a vehicle while under the influence of alcohol, drugs, medication, or any other substance that may impair your ability to safely use a vehicle.’