Dynamic assessment of potential fire risk in subcompartment scale of forest stand plays an important role in the application of fire prevention and management practice.Fire risk of tapping and no tapping forest stand of Pinus kesiya var. langbianensis in Lincang city was conducted with fire accessibility,dead fuel load,stand flammability,and surface moisture gradient,aspect based on national rating system BHX,static fire risk SHX and dynamic fire risk DHX respectively.With the support of geographic information system (GIS),the dynamic change pattern of fire risk caused by the increase of fuel load and flammability and the density of fire ignition was mapped,and the reasons for the drastic change of forest fire risk level were discussed.The results show that all forest stand have the consistent values of high fire rating BHX.When accounting the variation of forest fuel condition,the static fire risk of no tapping stand is quite different,mostly at high fire risk.While tapping activities make forest stand fire risk increase in different degree,forest fire danger rating is mainly concentrated in severely high as fire risk rise ratio greater than 25% takes more than 60% forest stand.Excessively and non-standard tapping is the key point of forest fire risk increased.Forest stand is the basic unit of forest management activities,and the fire risk assessment is refined to the small scale of forest stand under different management levels,so the study has certain reference value for fire risk assessment under basic forest fire management and other measurement.