The winger, 26, is off to Scotland after scoring 15 times for Solihull Moors last season.
He steps up and will of course walk out against Celtic and Rangers next season.
“It’s exciting for me to take the next step in my career with Motherwell,” Hylton said on Well’s website.
“I’ve learned a lot already about what it’s like to play in Scotland and the different challenges it will present.”
“I hope I can bring something different to the team in the new season and help the club make an impact in the league and cups.”
His new manager Stephen Robinson said: ”Jermaine helps us boost our forward options for next season.
”He’s dynamic, sharp and knows where the net is too. He had an excellent time in a very good Solihull side and we hope he can replicate some of that form here. We’ve added five new faces and our priority remains adding more reinforcements at the top end of the park in terms of strikers and wingers.”