Abstract: Due to the well anti-jamming and easy networking performance,the frequency-hopping communication has been widely used in military and commercial communication. The design of frequency-hopping sequence has decisive influence on the property of frequency-hopping system. To overcome the defect of generating wide gap frequency hopping random sequence in the method of dipole frequency band,a kind of nonlinear modulo method is proposed. The performance analysis and computed results show that the nonlinear modulo method has improved significantly in randomness and anti-jamming comparing the dual method,and the related performance is in close proximity to the performance of optimum frequency-hopping sequence.