The invention relates to the technical field of production processes of hot-rolled pickling strip steel and in particular relates to niobium-free low-cost 800MPa level hot-rolled pickling strip steeland a production method thereof. A combination of niobium-containing 800MPa level ferrite and bainite high-strength steel is an easily designable steel type, however, because a certain amount of niobium is added, the production cost stays at a high level, and the market competitiveness is poor. With the adoption of a niobium-free technology, the problem that the cost is high due to the niobium content is completely solved, hot-rolled pickled plates with the tensile strength of more than or equal to 800MPa and having a microstructure of ferrite+ bainite can be produced, the production cost is low, and the market competitiveness is high.