A mobile phone with pedometer, which can detect the user's physical-activity status and can generate and display the calorie and fatness the user consumes via the user's inputting the related parameters, such as weight, stride, etc. is disclosed. Further, via inputting the parameters, such as the number of objective step, the standard of insufficient physical activity, etc., into the mobile phone with pedometer, the user can monitor and control his/her physical activity status.