本研究提出了一种汉字和弦键盘的编码方案（心工码），比较了在三种编码规则下对汉字和弦键盘编码方法的学习和操作。实验发现利用汉字笔形与和弦组合的空间表象相容性的编码方法，在学习的速度、反应的正确性和反应时上，都优于随机编码方法。结果表明：基于表象相容性的汉字笔形和弦键盘将是汉字输入的又一个有效途径。 In this study, we proposed a coding scheme of Chinese chord keyboard (heart code), and compared the learning and operation of Chinese chord keyboard coding method under the three coding rules. The experimental results show that the coding method using the compatibility of the Chinese characters’ pen and chord is superior to the random coding method in terms of speed of learning, correctness of reaction and reaction time. The results show that the Chinese character stroke chord keyboard based on appearance compatibility will be another effective way to input Chinese characters.