The BBC Sport presenter said in an interview with The Mirror that he "just didn't fit in" at secondary school and described the period of bullying as "probably the worst two years of my life".
Humphrey said: "People always assume the weak and the useless get bullied and I am perfectly happy to talk about how I was bullied so badly I had to change schools. It was a horrible time.
"When I started at high school I just didn't fit in. The teacher even said I was too sensitive for my age."
Humphrey recalled an incident at his scout group where he was put into a canvas tent bag by bullies, saying: "I remember the Scoutmaster opening it up and saying, 'No more bullying Jake nights'."
The host of the BBC's Formula One coverage added that attitudes towards bullying were different when he was at school, explaining that the headmaster singled him out at assembly in an appeal for the bullies to leave him alone following a complaint from Humphrey's parents.
[L: Hosting Sports Personality of the Year in 2011, R: With David Coulthard and Eddie Jordan at a Formula One Grand Prix]
"Things have changed, because they would never do it these days, but in the assembly the headmaster said, 'Can Jake Humphrey please stand up?' and then he announced to the school, 'Jake is being bullied. Can you please stop it?'
"I was like, 'Oh, my God, can you please stick a sign on my head saying bully me, please?' It was awful."
Humphrey said that the bullying stopped when he moved schools and added that he still has no idea to this day why he was targeted.
However, he added that he thinks his experiences have made him aware of people's feelings.
"Being bullied helps me with the job, as it's given me empathy with what people have achieved and I try to use human emotion to tell that story to people at home," he explained.