A liquid chromatographic system (1) includes an analysis flow path (12) to which at least one liquid sending pump (14) is connected and through which liquid that is sent by the liquid sending pump (14) flows, a sample injector (4) that injects a sample into the analysis flow path (12), a separation column (6) that is provided on the analysis flow path (12) and is to separate a sample that has been injected into the analysis flow path (12) into components, a detector (8) that is provided on the analysis flow path (12) and is to detect sample components obtained by separation in the separation column (6), a system configuration specifier (26) that specifies a count and a connection structure of the liquid sending pumps (14) connected to the analysis flow path (12) as a system configuration, a condition holder (18) holding a condition that is for detection of a liquid sending failure of the liquid sending pump (14) and is preset in regard to each type of the system configuration, a condition determiner (20) that is configured to determine the condition corresponding to a system configuration specified by the system configuration specifier (26) from among conditions held by the condition holder (18), and a liquid sending failure detector (22) configured to detect a liquid sending failure of the liquid sending pump (14) using the condition determined by the condition determiner (20).