The disclosure discloses a method for adjusting a mobile terminal browser, which comprises setting an upper threshold value and a lower threshold value of a downloading speed for a mobile terminal browser. The method further comprises: calculating a current average downloading speed of the mobile terminal browser; comparing the current average downloading speed with the upper threshold value and the lower threshold value of the downloading speed; resetting network parameters of the mobile terminal browser when the current average downloading speed is less than the lower threshold value of the downloading speed or greater than the upper threshold value of the downloading speed. The disclosure also discloses a mobile terminal. The disclosure optimizes the network parameters of the mobile terminal browser according to the current network environment, and simultaneously increases downloading efficiency and stability of the mobile terminal browser, thereby avoiding the process of manually setting the relative network parameters of the browser by a mobile terminal user according to different network environments, so that the browser is more humanized and user experience is greatly improved.