The invention discloses an efficient beneficiation method for low-grade titanic magnetite hard to select and smelt. The method comprises the steps that in the crushing step, the low-grade titanic magnetite hard to select and smelt is crushed; in the first section ore grinding classification step, the titanic magnetite obtained after crushing is ground, first rotational flow classification is conducted, first fine particle overflow and first coarse grain pulp are obtained, and the first coarse grain pulp is subjected to first grinding again to return,; in the one-section low intensity magnetic separation step, the first fine particle overflow is subjected to first low intensity magnetic separation, and first iron concentrate pulp and first tailings pulp are obtained; in the screening classification step, the first iron concentrate pulp I is screened, and plus sieve coarse ore and minus sieve fine pulp are obtained; and in the second-section ore grinding classification step, the first iron concentrate pulp and the plus sieve coarse ore are combined and subjected to second rotational flow classification, second fine particle overflow and second coarse grain pulp II are obtained, and the second coarse particle pulp is subjected to second grinding to return to second rotational flow classification. For the low-grade titanic magnetite hard to select and smelt, the iron and titanium recycling rate is increased in combination of rotational flow classification and low intensity magnetic separation, and the method has the beneficial effects of being simple in technology, easy to operate and high in beneficiation efficiency.