Crawler technology is widely used in data collection, analysis and mining, providing valuable data support for enterprises. The common ways for reptiles to make money are: outsourcing reptiles, providing data services for enterprises through the platform of receiving orders; Data analysis, providing enterprises with data analysis reports to support decision-making; From the media, realize traffic realization by sorting and publishing the captured data; Data transaction, which sells the integrated data to enterprises or individuals in need. The application of crawler technology needs to abide by laws and regulations, have professional knowledge and technical level, and ensure the legitimacy and value of services.