An integrated medicine mixing interface comprising a medicine mixing mouth (1), hard double interfaces (2) and a medicine feed needle (3). The hard double interfaces (2) comprise a base (21), a medicine mixing interface (22) and an infusion interface (23). The medicine mixing mouth (1) and the medicine mixing interface (22) are integrated. When using the integrated medicine mixing interface, it is only necessary to weld the base (21) to the bag body of a soft infusion bag (11) and integrate the medicine mixing mouth (1) with the medicine mixing interface on the hard double interfaces (2) without adopting a hose connection and an easily folding handle, which not only reduces hose installation location, but also avoids welding leakage brought about by hose welding defects. Moreover, the structure is simple and the costs are low.