The utility model discloses an urban high-pressure gas impact vibration source, which is characterized by mainly comprises a lock, a top board, a pull rod, a high-pressure gas bag, a hammer, an oil cylinder, a bottom board, a trolley plane, a guide post, a chopping board, a control electric box, a direct current electric oil pump and a storage battery, wherein the storage battery supplies the electricity, the direct current electric oil pump starts so that oil in an oil tank of the direct current electric oil pump is filled into the oil cylinder, an oil cylinder piston ascends, the hammer is propped to ascend along the guide post, simultaneously, gas in the high-pressure gas bag is compressed, the energy is stored, when the hammer reaches the specified height, the pull rod is locked by the lock, the oil of the oil cylinder returns to the original position, when the excitation is needed, the lock is knocked so that the lock is unlocked, the pull rod is unlocked, the high-pressure gas bag releases the energy, the hammer impacts the ground chopping board through the positioning of the guide post, and high-frequency man-made seismic waves are generated. The urban high-pressure gas impact vibration source has the advantages that the weight is light, convenience, portability and safety are realized, the operation is simple, the excitation energy is high, high frequency is rich, the work efficiency is high, the cost is low, and the urban high-pressure gas impact vibration source is in a non-explosive type and a non-electromagnetic type and is suitable for urban earthquake exploration and shallow earthquake exploration.