Great Britain came away with 13 medals, including six golds, to finish as the top nation at the the World Para Dressage Championships in Gloucester
Pearson enjoyed many wins on his old horse Blue Circle Boy
The team of Lee Pearson, Anne Dunham, Simon Laurens and Michelle Crunkhorn successfully retained their title.
Pearson also took the Grade 1b individual and freestyle honours while Laurens won the Grade 3 freestyle.
There were also victories for Sophie Christiansen (Grade 1a freestyle) and Nicola Tustain (Grade 2 individual).
Christiansen also won bronze in the Grade 1a individual event while Tustain followed up her gold with silver in the Grade 2 freestyle.
"To win three consecutive golds at world championships is a marvellous achievement," said Tustain, who had to ride her veteran horse Hotstuff after an injury to her usual mount Prinz Heinrich .
"I've had problems with injury and also with finding a horse for this competition so I'm delighted."
I'm delighted to be part of the GB squad and I can't believe I've won two golds
Athens Paralympian Debbie Criddle also won two medals - silver in the Grade 3 freestyle and bronze in the individual event while Anne Dunham captured silver in the Grade 1a freestyle.
There were also bronzes for Felicity Coulthard in the Grade 2 freestyle and Ricky Balshaw in the Grade 1b individual behind Lee Pearson.
Pearson was in superb form on his new horse Altino who he linked up with recently after his Paralympic gold medal-winning horse Blue Circle Boy had to be retired.
He scored over 77% in all of his competion rides and the 33-year-old from Stafford was delighted with his success.
"To leave here with three gold medals is a dream come true for me." he said.
"I've had my most exhausting couple of months ever coming into this competition but this makes it worthwhile."
There were also good displays from some of the younger members of the squad who were not eligible to win medals but whose performances count towards qualifying places for Beijing.
Rory Williams had the top score in the Grade 1a individual section and the second-best in the freestyle section while Natasha Baker scored the third-best score in the Grade 2 individual and the fourth-best score in the freestyle event.
World Championship squad:
Grade 1a: Sophie Christiansen (Berkshire), Anne Dunham (Wiltshire)
Grade 1b: Ricky Balshaw (Shropshire), Lee Pearson (Staffordshire)
Grade II: Felicity Coulthard (Lancashire), Nicola Tustain (Denbighshire)
Grade III: Debbie Criddle (Somerset), Simon Laurens (Channel Isles)
Grade IV: Michelle Crunkhorn (Nottinghamshire), Denise Shawns (West Lothian)
Grade 1a: Rory Williams (Middlesex)
Grade 1b: Lucy Barclay (Lincolnshire)
Grade II: Natasha Baker (Middlesex)
Grade III: Toby Pawson (Surrey)
Grade IV: Sophie Wells (Nottinghamshire)