[Problem] Provided is a liquid administration device with which it is possible to temporarily stop administration.[Means for Resolution] Provided is a liquid administration device 10 including: a structure 40 which includes a syringe 60 capable of accommodating a liquid therein and a needle tube 66 communicatable with the inside of the syringe 60； an operation unit 20 for discharging the liquid inside the syringe 60 from the needle tube 66 by moving to the structure 40 in a distal direction； a cover member 30 which is movable between a protection position at which the needle tube 66 is covered, and an exposure position from which the needle tube 66 is exposed； a second coil spring 11 which biases the cover member 30 in the distal direction； and a first coil spring 12 which biases the operation unit 20 to the structure 40 in the distal direction. The operation unit 20 and the structure 40 have a resistance projection portion 96 and a resistance claw portion 105 which come into contact with each other while changing a contact position when the operation unit 20 moves to the structure 40 in the distal direction and applying pressing force to each other.
