Surface plasmonic bending beams (SPB) are optical beams that propagate locally on metal surfaces, thus showing special application potential in photon manipulation and optical capture. Using phase matching method, various metal nanoslit arrays, including V-, N-, M-, and M+V-shaped arrays, are designed to generate the SPB. In addition, the effects of the polarization angle and structural parameters of the incident light wave on the regulation of SPB electric-field intensity are discussed. Considering the M-shaped array as a representative example, the relations between the angle of the structural arms and structural parameters and coupling between the structures on SPB are discussed. The results show that the variation in the SPB electric-field intensity generated by different structures according to the polarization angle of the incident light wave follows a sinusoidal function distribution. In addition, the SPB electric-field intensity distribution is affected by the angle between the structural arms and structural parameters and the coupling between the structures. Qualitative analyses using far-field radiation intensity of the dipole and the law of radiation angle provide guidelines for the design and optimization of SPB generators.