Adjustable seismic source

The utility model discloses an adjustable seismic source, which comprises a counter weight, a counter weight and a hoisting mechanism. Wherein the lifting mechanism comprises a lifting rope, the lifting rope is connected with an electromagnetic chuck, and the heavy hammer can be adsorbed through the electromagnetic chuck. And the heavy hammer adsorbed on the electromagnetic chuck can be lifted to a certain height through the lifting mechanism. When the heavy hammer is lifted to a certain height, the electromagnetic chuck can be powered off to release the heavy hammer, and the heavy hammer can fall down to hammer the ground under the action of gravity. The amplitude of vibration waves generated when the heavy hammer hammers the ground can be detected through the vibration wave detection equipment, and if the amplitude of the vibration waves deviates from the needed vibration wave amplitude, the weight of the heavy hammer can be adjusted through the balance weight so as to adjust the energy of the heavy hammer