A design scheme for the antenna and electrode of the intense integrated optical waveguide sensor is proposed in this paper. Based on the equivalent circuit of the sensor, influences of the parameters of the antenna and electrode on the half-wave electric field (Eπ) were calculated and analyzed. The results suggest that as the length of the electrode and antenna decreasing from 4mm to 0.5mm, Eπ will increase from 230kV/m to 2400kV/m and 1100kV/m respectively. As the gap and width of the electrode increase from 20μm to 200μm, Eπ will increase from 400kV/m to 2300kV/m and 730kV/m respectively. As the bottom width of the antenna increases from 50μm to 600μm, Eπ will decrease from 460kV/m to 242kV/m. Accordingly, based on a rational design of the antenna and electrode dimensions, the sensor can realize a Eπ of several hundreds or even thousands of kV/m, which is appropriate to be used to detect the intense electric field.