To improve the tracking accuracy of the maximum power point of photovoltaic cells can improve the operational efficiency of photovoltaic power generation system and reduce the cost of photovoltaic electricity. Because the common perturbation and observation (P&O) runs at a low speed, this paper proposes a new dual-mode control maximum power point tracking (MPPT) algorithm based on improved genetic algorithm and P&O method. Then this method was used in the experiment. From the experimental results can be seen, the algorithm overcomes the shortco...