Source excitation is an important factor of the effects of seismic exploration. Choosing the appropriate excitation parameters in oil and gas exploration in order to get better seismic record is necessary. By using the software ANSYS/LS-DYNA, we adopted Lagrange algorithm based on the finite element method to simulate the seismic source of the cylindrical explosive. In this paper we focus on the frequency component of excited seismic waves in single well. Through the study of explosive detonation velocity a...