A power amplifying module includes a radio frequency amplifying circuit including an amplifying circuit configured to amplify an input signal and output an amplified signal, and a bias circuit of an emitter-follower type configured to bias the amplifying circuit to an operating point, and a constant voltage generating circuit configured to generate, from a first reference voltage, a first constant voltage applied to a base side of a transistor of the bias circuit and a second constant voltage applied to a collector side of the transistor.