The invention discloses an integrated water path component and a water purifier. The integrated water path component comprises a component body, a plurality of straight filter element flow passages extending forward, a straight booster pump influent water flow passage extending leftward and a straight booster pump effluent water flow passage are formed in the component body, the straight filter element flow passages are used for connection with filter elements of the water purifier, and the straight booster pump influent water flow passage and the straight booster pump effluent water flow passage are respectively used for connection with the water inlet and water outlet of a booster pump of the water purifier. By adopting the technical solution of the invention, the assembly efficiency ofthe water purifier can be increased.