The invention discloses a monitoring method and apparatus for degree of correlation between websites. The method comprises steps of acquiring user visit data of a first target website to achieve first user visit data and acquiring user visit data of a second target website to achieve second user visit data, determining skip times between the first and second target websites through hyperlink according to the first or second user visit data to achieve a first correlation times, determining visiting times of the first and second target websites except for the hyperlink in a preset time interval according to the first and second user visit data to achieve a second correlation times, and determining degree of correlation between the first and second target websites according to the first and second correlation times. A technical problem that degree of correlation between websites cannot be determined in the prior art can be solved.