Arrangement Structure of Evaporated Fuel Treatment Device of Saddle-ride-type Vehicle

To enable mounting of a canister on a vehicle body in a compact manner while favorably ensuring the charge performance and the purge performance of the canister in the arrangement structure of an evaporated fuel treatment device of a saddle-ride-type vehicle. An under cowl (26) is provided at a front side of a lower portion of an engine (14), and a canister (41) is arranged below the engine (14) and inside the under cowl (26).