Having raced into a 3-0 lead inside 35 minutes, they were holding on precariously at the finish down to 10 with the loss of their keeper and more than five minutes added on.
But Guernsey were well worth the 3-2 victory watched by a crowd of perhaps as many as 800.
Jacob Fallaize was a starter for the home side despite his prolonged absence from playing due to knee issues and alongside Tom Dodds, Charlton Gauvain and Kyle Smith was one of the four starters with plenty of Guernsey FC experience.
It was a strong starting XI with Will Fazakerley and Smith forming the two-pronged attack with the hope that Seb Smeed would pull the strings from a wide position on the left and Gauvain on the right.
That was the plan anyway and it worked a treat.
The goals came from Gauvain, Fazakerley and Smith, with Jersey's late consolation strikes scored by Harrison Moon and Sol Solomon.
More in today's Guernsey Press.
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