The invention provides a forging method for deformed short T-shaped blank, and the forging method solves the problem that forming of deformed short T-shaped blank is difficult, and relates to the technical field of forging-pressing. The forging method for the deformed short T-shaped blank comprises the following steps: a first step of placing the lower end part of rod-shaped blank into a heading lower mould cavity, placing the upper end of the rod-shaped blank into a heading upper mould cavity, pressing a heading upper mould along a heading lower mould until a bump part is formed between the upper end part of the rod-shaped blank and the lower end part of the rod-shaped blank, thereby forming first intermediate blank. The forging method solves the difficult forming problem of the deformedshort T-shaped blank. An inner metal flow line of the integrally formed deformed short T-shaped blank is good, and an aviation product processed by the inner metal flow line is good is in integral performance, so that weight of the aviation product can be relieved on the premise of meeting performance requirements, and therefore, product competitiveness is improved.