An energy-saving bean sprout machine, comprising a bean sprout drum (1) and an automatic sprinkling device (2). The bean sprout drum (1) comprises a germination drum (3), a bean sprout rack (4) and a drum cover (5). The automatic sprinkling device (2) comprises a movable connector (6), an electromagnetic valve (7), spray heads (8) and a mechanical timer (9). The movable connector (6) is connected to an inlet of the electromagnetic valve (7), a water outlet of the electromagnetic valve (7) is connected to the spray heads (8) via a pipe, and the spray heads (8) are located within the germination drum (3). The mechanical timer (9) comprises a mechanical clock (11) and a switch device (12), and a moving contact (14) is provided on an hour hand (13) of the mechanical clock (11). The switch device (12) comprises a switch disc (15), a spring (16) and a plurality of sets of static contacts (17), and the switch disc (15) is located opposite the hour hand (13). The static contacts (17) are connected to a power source, the static contacts (17) are connected in series to an electromagnetic coil of the electromagnetic valve (7), and each set of static contacts (17) is connected in parallel. When in operation, the moving contact (14) and the static contacts (17) of the mechanical timer (9) are used to control the power source of the electromagnetic valve (7), controlling sprinkling by the spray heads (8). Operating energy is saved, manufacturing costs and usage costs of the bean sprout machine are reduced, and the occurrence of malfunctions in the bean sprout machine is reduced.La présente invention concerne un germoir à graines de soja à économie dénergie, comprenant un tambour à graines de soja (1) et un dispositif darrosage automatique (2). Le tambour à graines de soja (1) comprend un tambour de germination (3), un étage (4) pour disposer les graines de soja et un couvercle de tambour (5). Le dispositif darrosage automatique (2) comprend un raccord mobile (6), une valve électr
