We consider a system consisting of two two-level atoms interacting wi th two coupled cavities via a two-photon hopping.Two atoms are individually trapped in two co upled cavities.The evolution of the state vector of the system is given by solving the Schrodinger equation.Negativity is used to quantify the degree of entanglement.By means of the numerical calculati ons,we investigate the temporal evolution in the entanglement between atoms and that between atom a nd cavity.Through comparing the results of different cavity-cavity coupling coefficients,the inf luence of cavity-cavity coupling coefficient on the entanglement is discussed.The obtained results sho w that the atom-atom entanglement and atom-cavity entanglement both display the evolution which is f rom the irregular oscillations to quasi-periodic oscillation with the cavity-cavity coupling coe fficient increasing.The average value of atom-atom entanglement and that of atom-cavity entanglement s ometimes increase and sometimes decrease.It shows that there is non-linear relationship between atom-atom entanglement and cavity-cavity coupling coefficient,or between atom-cavity en tanglement and cavity-cavity coupling coefficient.On the other hand,when the cavity-cavity coupling coefficient is small,the entanglement between atom and cavity exhibits the phenomenon of collapse and recovery.