The invention provides an oil field steam-injection boiler heating system adopting a solid thermal-storage electric boiler and two-stage heat exchange. The oil field steam-injection boiler heating system comprises a thermal source heating system, a steam injection system and an exhaust pipeline. The thermal source heating system comprises the solid thermal-storage electric boiler and a two-stage heat exchange system. Subcritical and supercritical steam can be generated through the solid thermal-storage electric boiler and the two-stage heat exchange system and injected underground through the steam injection technical system to heat crude oil, and the steam injection and heating processes are conducted on a thickened oil well. Power grid night off-peak electricity with low electricity price can be used and converted into heat energy, and high-temperature heat storage is conducted through the solid thermal-storage electric boiler. Steam injection and heating are conducted on the thickened oil well through high-parameter steam produced by the oil field steam-injection boiler heating system, the problem of combustion emission pollution of an oil field steam injection boiler is solved, peak-valley difference peak regulation can be conducted on a power grid by combining the electric boiler and the energy storage technology, and the best solution scheme facilitating energy conservation, emission reduction and environment protection of the petroleum industry and electricity peak regulation of power plants and the power grid is achieved.