A method using a self-designed continuous resistance wire sensor has been developed for measuring the detonation wave and the near-field parameters in a single underwater explosion.The new sensor improved from the conventional permits measurement in underwater explosion test,wave discontinuities like gap and jump being relieved with the interference suppression from electromagnetic wave,advanced air shock wave and metal jet.Underwater explosion parametric test systems in near field for Cylindrical and spherical charge have been carried out.The time-history curve of oblique shock wave generated by the cylindrical is analyzed,from which the parameters of the JWL EOS can be determined via a fitting and calculating process.By compared with the simulated result from coefficient-revised AUTODYN program,the present method may provide a feasible and reliable means for underwater explosion measurement.