In view of the short time and poor stability of pulsed electromagnetic field, measuring electric field and magnetic field respectively will reduce the accuracy. In this paper, a scheme for measuring pulsed magnetic field and electric field at the same time is designed. Firstly, the relationship between electric field and magnetic field is deduced by using theoretical knowledge, then the half wave symmetrical antenna is modeled by cst2020, and the load effect and size effect of the antenna are simulated to determine the shape of the antenna. Finally, the signal is processed by charge sensitive amplification circuit. The simulation results show that the length of half wave symmetrical antenna is 15mm, the load capacitance is 1pf and the load resistance is 1m Ω, which is the best length. The charge sensitive amplification circuit processes the signal, the pulse current signal range is 0.1ua-1ma, the measurement range of electromagnetic field is linear, and the error is about 0.77%. The simulation results show that the shape parameters of half wave symmetrical dipole antenna and the waveform of pulsed electromagnetic field measured by charge sensitive amplification circuit can meet the requirements.