abstract: A class of backward doubly stochastic differential equations (BDSDEs), which has a more general form of the forward Ito integrals is observed.The existence of the solution for this class of BDSDEs with continuous coefficients is given, a comparison theorem for this class of BDSDE is proved and the existence of minimal and maximal solution is derived. At the end,Kneser-type theorem for a larger class of BDSDEs is obtained.It is shown that for the elements of this class of equations, there is either unique or there are uncountable solutions.