A method for adjusting an input-method keyboard includes: recording the sliding trajectories of a user's two fingers, and the trajectories include two starting contact points and two ending contact points of the two-finger sliding gesture; calculating an adjustment ratio according to the sliding trajectories; obtaining the current state of the input-method keyboard, and the state can be one of a maximum state, an intermediate state and a minimum state; and adjusting the size and/or layout of the current input-method keyboard according to the adjustment ratio and the current state of the input-method keyboard. The mobile terminal for adjusting an input-method keyboard includes a recording module, a calculation module, an acquisition module and an adjustment module. This method allows users to intuitively modify the size and layout of the input-method keyboard comprehensively, thus avoids accidental operation, enhances the user experience and strengthens the reputation and competence of the product.