In order to research the influence of lattice structure parameters on electromagnetic spectrum characteristics of wave transmission plate， the simulated models are built based on the model of body centered cube（BCC）， and the lattice structure parameters such as porosity， skin thickness， cell size and incidence angle are analyzed on the influence of band-pass resonance frequency and transmittance using CST software. Besides， a wave transmission plate structure with lattice structure is fabricated by the technology of selective laser sintering （SLS）， and its electromagnetic transmittance is measured at the frequency from 2 GHz to 18 GHz. The results show that the simulation results are in good agreement with the test results. With the increase of porosity， the first frequency point shifts to low frequency， and the second frequency point shifts to high frequency. With the increase of skin thickness， the transmission decreases. The cell size and skin thickness determine the passband resonance frequency of transmission spectrum， and the effect of porosity is small. When the incident angle increases， the horizontal polarization incident wave transmittance is greater than 75%， while the vertical polarization incident wave transmission rate decreases gradually at high frequency.