With the accelerated development of urbanization in China and the orderly progress of the Belt and Road Initiative, construction industry has a huge prospect for the demand for engineering professionals. With the help of focused crawler, 9443 pieces of recruitment information related to engineering cost in the recruitment website of 51job is captured. The paper analyzes the demand characteristics of engineering cost professionals and constructs an ordered choice-probit model to explore the influencing factors of target salary. The results show that the demand of engineering cost professionals presents the characteristics of regional imbalance, generalization of educational background, concretization of work experience, and integration of post demand and professional ability. The demand for six kinds of capabilities varies greatly. The positive effect of professional qualification certification on target salary is significant. The higher the salary is, the higher the requirements of work experience and education are. The salary level is related to the city level, and there is a significant difference between the super first tier cities and other cities. Big data analysis provides certain data support for all kinds of colleges and universities to establish a talent training mode of engineering cost specialty to meet the market demand.