钢琴的学习者为了弹奏出富有特色和表现力的音乐,首先要解决的是钢琴弹奏的触键问题。因为触键的技巧、触键的部位、触键的力度或者弧度等因素都关系着钢琴弹奏出的音色质量。所以运用科学的触键方法控制钢琴的音色反映是钢琴学习者在练习过程中需要掌握的重要技能。它直接关系到演奏水平。本文通过分析触键部位、触键力度、触键技巧、触键支撑力和爆发力等因素对音色的影响来论证触键对于音色的重要影响。 Piano learners in order to play a distinctive and expressive music, the first problem to be solved is the piano touch keys. Because touch key skills, touch the key parts, touch the strength of the key or arc and other factors are related to the piano playing the sound quality. Therefore, the use of scientific touch keys to control the piano’s tone reflects the pianist learners in the practice process need to master the important skills. It is directly related to the performance level. In this paper, we analyze the key impact of touch keys on timbre through the analysis of the impact of tactile parts, touch-point dynamics, touch-key techniques, touch-up support and explosive power on sound colors.