PURPOSE: To provide an in-line skate toy having a very simple mechanism and stably traveled by a practical action at a low cost.

CONSTITUTION: Connecting holes of leg portions 1 are coupled with connecting projections 5 on both sides of a chassis 7, interlocking wheels 6 and rear wheels are provided at the lower sections of the leg portions 1, and idle wheels are provided between these wheels. An oblong crank pin insertion groove 3"' is provided between the leg portions 1, and a crank pin 3" provided at the periphery section of a crank plate 3' fixed to a crank gear 3 interlocked with a power mechanism set on the chassis 7 is inserted, slid, and rotated. Interlocking springs 4 are directly connected to interlocking gears 4' interlocked with the power mechanism, interlocking gears 4" are directly connected at the other end, and the interlocking gears 4" are meshed with interlocking gears 6' provided on the interlocking wheels 6.