The invention provides a cloud-calculating high-speed-transmission parallel pair SFP + cable. Signal loss crosstalk can be effectively avoided and signal quality is increased. The cable comprises an inner core, an external layer metal shielding layer and a sheath. The sheath wraps an outer wall of the external layer metal shielding layer. The inner core is arranged in an inner cavity of the external layer metal shielding layer. The inner core comprises at least two groups of parallel line pairs. Each group of the parallel line pair comprises two core lines which are arranged in parallel, a ground line and an internal layer metal shielding layer. The corresponding core line and a ground line are arranged in the inner cavity of the internal layer metal shielding layer. All the parallel line pairs are superposed and arranged in a parallel mode. The adjacent parallel line pairs are isolated through a S-shaped half-pack isolation strip in the parallel mode. The S-shaped half-pack isolation strip comprises a plane isolation portion, a first outward isolation portion and a second inward isolation portion. One end of the plane isolation portion is bended outwardly so as to form the first outward isolation portion and the other end is bended inwardly so as to form the second inward isolation portion.