Abstract: In order to explore effects of different polarity charge implantation method on the discharge of thunderstorm clouds in the charge-replacement scheme after lightning discharge, a batch of sensitive experiments are implemented by changing the channel-induced charge to simulate a typical thunderstorm case in Nanjing, based on existing three-dimensional (3-D) thunderstorm cloud electrification and discharge patterns. Eeffects of thunderstorm cloud discharge are discussed from the perspective of space charge structure after discharge, lightning channel length, lightning frequency and type. Simulations show that the amount of induced charge by the lightning channel has a significant effect on the spatial charge structure distribution and the length of the intra-cloud flash channel. As the amount of induced charge in the channel increases, the number of lattice points where the polarity of the space charge is reversed before and after discharge increases, and the space charge structure becomes more complex, which in turn increases the intra-cloud flash with a shorter length of the lightning channel. The space charge structure is disordered, and it becomes more difficult for a wide range of identical-polar charge stacks to form during the development process. Meanwhile, it is also difficult for the lightning channel to pass through charge stack with the same polarity during the propagation process, and therefore the intra-cloud flash channel is limited to a pair of smaller heteropolar charge stacks. Eventually, the frequency of intra-cloud flashes that leads to shorter lightning channel lengths increases. The total amount of channel induced charge accumulation under different induction control multiples can be considered approximately the same within the error tolerance. The frequency of intra-cloud flashes is negatively correlated with the average cumulative amount of channel charges in different lightning channel induced charges:When the average cumulative amount of channel induced charges increases, the frequency of intra-cloud flashes will decrease. The change of the induced charge amount in the channel makes the charge distribution of the space charge region unbalanced. The frequency and type of the cloud-to-ground flash are affected by many factors, and the changing pattern is not obvious. Therefore, the channel-induced charge amount has little correlation with the frequency and type of cloud-to-ground flashes.