  The post Newtonian parameter is considered in the Chameleon-Brans-Dicke
frame. In the first step, the general form of this parameter and also effective
gravitational constant is obtained. An arbitrary function for $f(\Phi)$, which
indicates the coupling between matter and scalar field, is introduced to
investigate validity of solar system constraint. It is shown that
Chameleon-Brans-Dicke model can satisfy the solar system constraint and gives
us an $\omega$ parameter of order $10^4$, which is in comparable to the
constraint which has been indicated in {\cite{17-a}}.
