The invention discloses a multi-round-hole floor mould. The multi-round-hole floor mould comprises a mould body, a transition plate, a rear support plate, a front support plate, a confluence plate, a neck mould, a cooling water jacket, a water passing core rod, a main core rod and a diversion cone, wherein the mould body, the transition plate, the rear support plate, the front support plate, the confluence plate, the neck mould and the cooling water jacket are connected in sequence, and the water passing core rod, the main core rod and the diversion cone are located inside. The multi-round-hole floor mould is characterized by further comprising an internal mould cavity, wherein multiple round holes are formed in the surface of the mould cavity, and sawtooth-shaped grooves are integrally designed in the upper and lower surfaces of the round holes. Due to the structure of the sawtooth-shaped grooves, stripes are formed on the surface of a product machined by the mould, and through round holes are formed inside the product; besides, skid resistance can be achieved, and practicability is high. The water passing core rod, the main core rod and the diversion cone are all located in the middle in the mould and are located at the same height, and the main core rod penetrates through the front support plate, the confluence plate, the neck mould and the cooling water jacket on the inner side in sequence. The multi-round-hole floor mould is ingenious in structural design and more reasonable in layout, and a manufactured round-hole floor is high in structural stability and permeability and good in dampproof effect.