The present invention provides a method and an apparatus of continuously inspecting an optical display panel and a method and a system of continuously manufacturing an optical display panel, which candetect a defective pixel with the same or higher accuracy even if the number of imaging units is reduced as compared with the prior art. The method of continuously inspecting an optical display panelcomprises the following steps of: a first irradiation step of irradiating first linear light parallel to the width direction of an optical display panel for the linear inspection region of the optical display panel in a direction inclined with a first angle from the vertical direction of one surface of the optical display panel to the upstream side of the transmission direction, wherein the widthdirection being a direction orthogonal to a conveyance direction of the optical display panel; a second irradiation step of irradiating the line inspection region with second linear light parallel tothe width direction from a direction perpendicular to one surface of the optical display panel and inclined at a second angle toward the downstream side in the transport direction; and an imaging step of continuously imaging the line inspection region irradiated with the first and second linear light in a line shape parallel to the width direction of the optical display panel by one imaging unit.