The invention relates to a multi-sample solid insulation electric life test system under a low capacity dc source and belongs to the high voltage technology field. The system comprises a high voltagepower source, a current limit resistor, multiple sets of solid relays I, multiple sets of knife switches, multiple sets of test electrodes and a timing counter, wherein the knife switches, control ends of the solid relays I and the test electrodes are sequentially connected in series to form test branches, the test branches are connected in parallel to form a test circuit, the high voltage power source is connected with one end of the current limit resistor, the other end of the current limit resistor is connected with the test circuit, the other end of the test circuit is connected with control ends of solid relays II, the control ends of the solid relays II are in ground connection and are connected with the high voltage power source to form a primary loop of the test system, and outputends of the solid relays I are connected in series with electromagnetic motion units of the knife switches and are then connected with a commercial power source to form a control branch. The multi-sample solid insulation electric life test system is advantaged in that multi-sample test can be accomplished under the low capacity dc source, acquired data has small dispersibility, and sample characteristics can be more accurately reflected.