The annual fundraiser - sometimes called ‘Pudsey Day’ - takes place in the UK to raise money to support more than 2,000 UK charities helping to improve children’s lives.
Pupils were asked to donate some money for the non-uniform day, with most wearing spots or the colour yellow.
Staff from Boston’s Asda store escorted Pudsey to a full school assembly at Staniland Academy and then visited every class at nearby Carlton Road Academy on the morning of appeal day.
In the afternoon, Pudsey spent a few hours meeting and greeting customers at the supermarket.
Stephen Bromby, community champion at Asda Boston, said: “Money raised by Asda will directly support BBC Children in Need’s Emergency Essentials Programme, which provides grants for families living in severe financial, health and social difficulties.”