The output efficiency of terahertz wave based on the tilted-pulse-front geometry by controlling temporal and spatial chirps of pump pulses is improved theoretically and experimentally. For the situation of the additional temporal chirp, the results show that the output efficiency of terahertz wave is nonlinear to the additional positive chirp of pump pulses and there is an optimum selection. However, it is linearly inversely proportional to the additional negative chirp of pump pluses. For the situation of the additional spatial chirp, the results show that the output efficiency of terahertz wave is always decreased, regardless of the size and sign of the additional chirp. Furthermore, the dramatic decrease of the output efficiency appears with the increase of the spatial chirp. These results have a guiding significance for the optimization and regulation of the ultrafast terahertz wave system based on the tilted-pulse-front method.