The invention provides an ultra-short length erbium-ytterbium co-doped high gain glass fiber superfluorescence light source which includes: a semiconductor laser (LD) 1, a coupling lens system 2 (including a collimating lens 3 and a focusing lens 4), a signal light total reflective mirror 5, a high gain fiber 6 (a pumped light input terminal is a vertical cutting terminal 8 in figure (a) structure and is a bevel terminal 7 in figure (b) structure, a superfluorescence output terminal is the bevel terminal 7 in figure (a) and (b)). The superfluorescence light source uses basic structure, and realizes superfluorescence output with high power, wide broad-band, stabile average wavelength in the ultra-short length high gain fiber. The ultra-short length erbium-ytterbium co-doped high gain glassfiber superfluorescence light source has has great practical value for future integrated optics, new generation fiber communications technology and fiber sensor technology.