HYDRAULIC BRAKING DEVICE

Provided is a hydraulic braking device wherein the heat of a driving coil can be absorbed by a base body (10), and the heat radiation performance is excellent. The hydraulic braking device having a base body (10) that includes therein a fluid passage for brake fluid, includes: a solenoid valve disposed on one surface of the base body (10); and a driving coil attached around an axis of the solenoid valve, wherein the one surface of the base body (10) is provided with a wall surface facing an outer circumferential surface of the driving coil. A lower surface (269) of the driving coil is in contact with the one surface of the base body (10), and a clearance is formed between the outer circumferential surface of the driving coil and the wall surface.