The invention discloses a bactericidal and antibacterial toilet cleaner. The toilet cleaner is prepared from raw materials in parts by mass as follows: 11-14 parts of sodium ammonium biphosphate, 15-18 parts of citric acid, 6-9 parts of sodium dodecyl benzene sulfonate, 7-10 parts of formalin powder, 5-10 parts of sodium stearate, 7-12 parts of sodium polyphosphate, 3-5 parts of a liquid surfactant, 5-8 parts of essence, 4-8 parts of borax, 11-15 parts of sodium bicarbonate and 25-30 parts of water. The toilet cleaner contains no strong acid, and is high in cleaning capacity, non-irritating, good in deodorization effect, capable of effectively realizing bactericidal and antibacterial effects and low in production cost.