The Shadow Chancellor says Blackpool has not been treated fairly when it comes to government investment.
Speaking at an event at the Winter Gardens, John McDonnell said eight years of austerity has hit the resort hard.
He also visited small businesses in the resort.
The shadow chancellor told an audience in Blackpool that places like the Lancashire seaside town have "not been treated fairly" in terms of Government investment.
His address at a Road To Rebuilding The Economy conference comes as other shadow cabinet members visited towns across England and Wales to mark Small Business Saturday.
They and hundreds of party activists are due to set out a five-point plan to boost retailers and retain services for communities.
Mr McDonnell said: "Eight years of austerity have hit many coastal towns like Blackpool very hard.
"Areas like Blackpool have not been treated fairly when it comes to government investment.
"My aim is to ensure that Blackpool receives its fair share of government funding to grow a vibrant and prosperous local economy.
"Our struggling high streets are one of the clearest symptoms of the Government's failure to invest in our communities.
"Labour's five-point plan for British high streets will help breathe life back into our struggling town centres.
"And Labour will deliver a fair deal for Blackpool and Britain's coastal communities."