Insulated drill pipes (IDP) are used for geothermal or hot dry rock drilling, which can significantly reduce the bottom hole circulating temperature (BHCT) of the well and provide a suitable temperature environment for downhole tools, instruments, etc. However, compared to conventional drill pipes (CDP), the weight and circulating pressure loss of IDP have increased obviously, and the drilling depth will also be affected. To this end, researches on drilling cooling programs based on IDP were carried out. A calculation method for wellbore temperature field was provided, and the distribution status of wellbore temperature field under different programs was calculated using literature data as an example. Impacts of the usage location and quantity of IDP on the distribution of wellbore temperature field, especially on the reduction of BHCT were analyzed. The results are as follows. When all IDP are used, the BHCT reduction is above 50 ℃; When using IDP in the upper three-quarter section of the drill string, the BHCT reduction is above 40 ℃; When using IDP in the lower three-quarter section of the drill string, the BHCT reduction is above 30 ℃; When using IDP in the upper or lower half section of the drill string, the BHCT reduction is around 20 ℃.Therefore, the drilling cooling programs based on IDP can be determined according to the decreasing requirements at BHCT, to achieve optimal application effect.