A syringe device includes a syringe body； a first space defined inside the syringe body； a plunger body being slidable inside the syringe body and varies the volume of the first space； a second space defined inside the plunger body； a plunger rod being slidable inside the plunger body and varies the volume of the second space； a coil spring that urges the plunger rod in a direction expanding the volume of the second space； a first communication passage and a second communication passage that communicate the first space with the second space； and a check valve member that forms an orifice that restricts the flow of a fluid between the first space and the second space in the first communication passage, and a check valve that allows only the flow of the fluid from the second space to the first space in the second communication passage.
