According to an embodiment of the present disclosure, disclosed is an apparatus for generating a radio frequency (RF) pulse in a magnetic resonance imaging (MRI) scanner. The apparatus for generating a radio frequency (RF) pulse in a magnetic resonance imaging scanner includes: a control module controlling a power amplifier and a signal generator； the signal generator configured to generate a signal of a predetermined waveform based on control by the control module and supply the generated signal of the predetermined waveform to the power amplifier in electromagnetic connection therewith； a power amplifier amplifying the signal supplied from the signal generator based on the control by control module and outputting the amplified signal to a coil； and the coil serving as an inductor of the power amplifier and transferring the amplified signal to the object so that an object is excited.
