From the 90s of last century, the service industry began to change from labor-intensive service-oriented to technology-intensive service-oriented. The high-tech service industry has the advantage of technological innovation, which makes great contribution to the economic growth. In recent years, the high-tech service industry of Dalian has grown steadily, but the competitiveness is not obvious. This paper constructs a high-tech service industry competitiveness evaluation index system, uses factor analysis method to estimate the comprehensive score of high-tech service industry competitiveness of 10 influential cities including Dalian in 2014, and at last offers some suggestions.