The invention provides a soil pollution remediation composition and application thereof. The soil pollution remediation composition comprises the following components of sodium percarbonate, ferrous sulfate, citric acid and sodium persulfate, wherein the molar ratio of the ferrous sulfate to the citric acid is 1:1; the sodium percarbonate and the sodium persulfate are used as oxidants; the molar ratio of the citric acid to the oxidants is (1 to 5):10; the molar ratio of the sodium percarbonate to the sodium persulfate is 1:(5 to 10); at least the sodium percarbonate and sodium persulfate are individually packaged before use. The soil pollution remediation composition can be used for effectively remedying the polluted soil.