Abstract: aiming at the problem of straw incineration in the field which has been banned repeatedly, this paper introduces the measures and shortcomings of straw treatment at the present stage, and puts forward a truck-mounted straw incineration power generation device which can solve the problem of straw incineration on the spot. By analyzing the material and energy flow process of the device, the composition and function of each part of the device, it is concluded that the device can reduce pollution, make full use of biomass energy in straw and low operating cost. the results show that using the device to treat straw is an effective method to solve the problem of straw burning.