Designed capacity’s enhancement needs to carry on the longterm accumulation of design knowledge, the material, the experience The article unifies author’s teaching and the design experience,carries on the analysis and the discussion from five aspects such as design project description explanation and analysis; plan idea; plan production and construction; the plan that deliberates graphical representation thought; the plan deepening and expression It points out only strengthen to the architecture specialized understanding, form the good design habit, the promotion design quality and the design training, can sharpen the designed capacity