To provide a scooter type vehicle capable of enhancing durability and reliability by preventing any deposition of foreign matter such as sand, mud and dust on an intake device (a throttle body, a fuel injection means).

An engine suspension boss 11a provided on a unit swing type engine 10 is pivotably attached to a vehicle body in a freely swinging manner, and a cylinder assembly 39 of a scooter type vehicle 1F having a storage box arranged in a rear frame cover 30 below a driving seat 8 and a controller 58 for controlling the amount and the timing of the fuel injection is arranged below the storage box 7F in a forwardly inclined and substantially horizontal manner while its central axis being along the vehicular advancing direction. A fuel injection means 50 is arranged adjacent to the storage box 7F, and an exhaust air from a fan 88 cooling the heat generation of a four-cycle engine body 13 is guided toward the fuel injection means 50 and a throttle body 49 between the cylinder assembly 39 in the rear frame cover 30 and the storage box 7F with a bottom face of the storage box 7F as a guide.

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