The invention discloses an anti-oxidation nano flame-retardant wrapping tape and a manufacturing method thereof. The flame-retardant wrapping tape uses glass fiber fabric and nanocomposite fiber fabric as the base fabric and nano flame-retardant colloid as the flame-retardant liquid. The nano flame-retardant colloid is composed of nano toughened ceramic powder, a high-temperature-resistant halogen-free curing agent, a formaldehyde cross-linking agent, an MF formaldehyde condensate dispersant, an antimony flame retardant, nano silica gel and ethyl acetate. The nano toughened ceramic powder andthe nano silica gel give the wrapping tape fire-resistant shelling property. The antimony flame retardant gives the wrapping tape flame retardance. The nano toughened ceramic powder gives the wrappingtape strong oxidation resistance. The MF formaldehyde condensate dispersant and the high-temperature-resistant halogen-free curing agent give the wrapping tape uniformity. Therefore, the whole flame-retardant wrapping tape has excellent high temperature resistance, oxidation resistance and flame retardance and the property of flame-retardant shelling after combustion. By using glass fiber highly-elastic needle-punched fabric and polyester glass composite fiber fabric as the base fabric, the toughness, oxidation resistance and high temperature resistance of the whole wrapping tape are greatlyenhanced.