Based on the characteristic of the electrical-optical bistable system under the condition of long delay, we propose a new scheme of realizing chaos control and synchronization. The results of numerical calculation show that by adjusting the driving intensity and the state of the driving system, not only the driven system can achieve stable control of different periodic states, but also the general chaos synchronization between the driving system and driven system can be realized. Using the maximal Lyapunov exponent （MCLE） as the criterion, the parameter range for realizing chaos synchronization is given.