This paper introduces the method of realizing connected digit recognition by editing the function of professional words recognition and modifying the grammar rules of Spark SDK in radar intelligence oral-reporting system. The result shows that the recognition ratio is greatly improved. 在雷达情报口报录取器中,利用SparkSDK实现连接数字语音识别,并通过编写识别专业词汇的函数以及修改SparkSDK的语法规则等方法提高了语音识别软件的识别率。