He was born at Grace Dieu, near Thringstone in Leicestershire, the second son of the judge Sir Francis Beaumont (d.1598) by his wife Anne Pierrepont.
[4] He began to write verse early and in 1602, at the age of nineteen, he published anonymously his Metamorphosis of Tabacco, written in very smooth couplets, in which he addressed Michael Drayton as his loving friend.
Beaumont's major work is a poem in twelve books, entitled The Crown of Thornes, which was greatly admired in manuscript by Henry Wriothesley, 3rd Earl of Southampton and others.
In 1629 the 2nd Baronet published a volume of his father's works entitled Bosworth Field; with a taste of the variety of other Poems left by Sir John Beaumont.
He always wrote with a remarkable smoothness, which marks him, with Edmund Waller and George Sandys, as one of the pioneers of the classic reformation of English verse.