Pickling, chemical conversion treatability, fatigue characteristics, hole expansion, and excellent in surface roughening resistance during molding, and high-strength hot-rolled steel sheet strength and ductility is isotropic and manufacturing method thereof

This high strength hot-rolled steel sheet includes: in terms of percent by mass, C: 0.05 to 0.12%; Si: 0.8 to 1.2%; Mn: 1.6 to 2.2%; Al: 0.30 to 0.6%; P: 0.05% or less; S: 0.005% or less; and N: 0.01% or less, with the remainder being Fe and unavoidable impurities, wherein a microstructure includes: 60 area% or more of ferrite phases; more than 10 area% of martensite phases; and 0 to less than 1 area% of residual austenite phases, or the microstructure includes: 60 area% or more of ferrite phases; more than 10 area% of martensite phases; less than 5 area% of bainite phases; and 0 to less than 1% of residual austenite phases, and a maximum concentration of Al detected by a glow discharge emission spectroscopic analysis is in a range of 0.75 mass% or less in a region from a surface of the steel sheet to a thickness of 500 nm after being acid-pickled.