. Hirota bilinear  operator  (Hirota Method) is proposed  to directly construct periodic wave solutions from Korteweg de Vries (KdV)  equation.  This solution can be expressed  in terms of  Jacobi  Theta 4 (Θ4)  functions, with  dispersion  relation  yielded  from  degradation of  biliear  equation. Then,  sinusoidal wave,  Solitary,  and Cnoidal can  be  reduced  from this solution to asses  certain of nome  (q)