The German retailer, which already employs 29,000 people in the UK, will open its 700th UK store in February.
Aldi has also said it will become the UK’s highest paying supermarket when it increases its minimum wage to £8.53 an hour from next month.
The German supermarket chain said 3,350 UK workers will benefit from the pay rise on February 1.
The move comes a year after Aldi raised its minimum wage to £8.40 an hour, and to £9.45 an hour in London.
It also beats the Government’s national Living Wage of £7.20 an hour, which will go up to £7.50 in April.
Matthew Barnes, head of Aldi’s UK operations, said: “We recognise the valuable contribution that our thousands of store employees make every day.”
The company wants to open another 300 stores during the next five years to bring its total to 1,000 in the UK.
Aldi has a 6.2 per cent share of the UK grocery market, making it the country’s sixth-largest supermarket chain.