The invention relates to a repetition rate pulse string generator based on Tesla transformers. The repetition rate pulse string generator is characterized by being formed by connecting a plurality of sections of high-voltage pulse forming lines in series, wherein the triggering part of each trigger type main switch is arranged inside each high-voltage pulse forming line; the high-voltage pulses are linearly charged by using the Tesla transformers; the sections of the high-voltage pulse forming lines are individually charged through the Tesla transformers respectively arranged inside the high-voltage pulse forming lines; and one Tesla transformer is arranged inside each section of the high-voltage pulse forming line. The repetition rate pulse string generator provided by the invention has the following advantages: the pulse string generator is charged by using the Tesla transformers, so that hundred-hertz repetition rate operation of the pulse string generator can be realized; the linear integration is formed by the Tesla transformers and high-voltage pulse, and the structure is compact, so that the output power index of the pulse string generator is greatly improved; the secondary coupling Tesla transformers for supplying power to trigger modules arranged inside the high-voltage pulse forming lines and the Tesla transformers capable of linearly charging the high-voltage pulse forming lines to form a double-secondary transformer, so that the double-secondary transformer has a compact structure.