The invention discloses an environment-friendly intelligent vehicle. The environment-friendly intelligent vehicle comprises a vehicle main body and an intelligent device; the vehicle main body comprises a vehicle body, a cab, an engine, a chassis, wheels, a tail gas treating device and electrical equipment; the tail gas treating device is of a double-layer cylindrical tubular structure, the port of an inner layer pipe which the tail gas treating device belongs to is closed, several air vents are formed in the pipe wall of the inner layer pipe, the outer port of an outer layer pipe is opened, the inner port of the outer layer pipe is closed, but several air vents are formed in the pipe wall of the inner port; the inner end of the outer layer pipe and the inner end of the inner layer pipe are connected through a bolt, a tail gas treating catalyst is placed in the inner layer pipe, and the inner layer pipe is made of an aminostyrene-styrene-acrylonitrile triblock copolymer of which the surface is modified by platinum-doped tris(2-chloroethyl) phosphate; the tail gas treating catalyst is a platinum-metal-loaded activated carbon catalyst; the intelligent device comprises a main controller, a temperature sensor, an ethyl alcohol detection module, a vehicle starter, an alarm apparatus and an SIM card module. The environment-friendly intelligent vehicle is small in environment pollution, can automatically judge whether the vehicle is drunk driven, monitor temperature in the vehicle at any time, when the temperature reaches a threshold value, the alarm apparatus can be stared for alarm, an alarm prompt short message can be sent to a driver at the same time, and a traffic accident caused by drunk driving and too high temperature in the vehicle can be effectively prevented.