A pair of effort-saving shears primarily comprises: a first shear element (10) having a combining portion (11) with a pivot hole (13) and a shear element combing hole (15) thereon, and a first handle (14) further attached to the first shear element (10); a second shear element (20) having combining portion (22) with a shear element combining hole (23); a handle shaft (30) axially positioned in a second handle (31) and having a combining portion (32) at one end; and effort-saving transmission assembly including a toothed block (41) fixed on one side of the combining portion (32) of the handle shaft (30), and a toothed hole (42) provided on the combining portion (22) of the second shear element (20), wherein the toothed hole (42) encloses and partially engages the toothed block (41) by parts of the teeth thereof; and wherein the combining portion (11) of the first shear element (10) overlaps the combining portion (22) of the second shear element (20); a pivot member (35), piercing through said pivot holes (13,33) to be placed between the toothed hole (42) and the toothed block (41); and a shear element combining pin (16) piercing through said shear element combining pin holes (15,23).
