Abstract:Patent is often affected by the strategic behavior of enterprises, but there are few studies on the impact of patent strategy on patent quality based on the strategic level. This article takes the ICT industry as an example to empirically analyze the impact of patent offensive and defensive strategies on patent quality under different scales of enterprises. The study found that: (1) For large and small-scale enterprises, adopting offensive strategies will positively affect patent quality, while adopting defensive strategies has no effect; (2) For medium-sized enterprises, adopting defensive strategies will negatively affect patent quality, while adopting offensive strategy has no effect. The research provides theoretical basis for strategic decision-making level for enterprises of different sizes to improve patent quality.