Temperature gradient action is an important reason for the cracking of concrete at arch foot in concrete-filled steel tube arch bridge during the service period. For Yaowan southeast highway bridge, the local model of arch foot was established by HohaiRCFE-S program, and the stress states of arch foot under four working conditions of uniform temperature rise, uniform temperature drop and superposition of sunshine and suddenly-decreased temperature respectively were analyzed. It was found that the sunshine and suddenly-decreased temperature significantly increased the tensile stress of concrete at arch foot and improved the risk of cracking. In order to control the cracking of arch foot, the limiting conditions of the concrete tensile stress aiming at crack width control were proposed. Five crack control measures were established respectively, such as increasing the thickness of surrounding concrete, adding shear nails, setting chord supports between arch ribs, placing the steel plate on the top surface of concrete and applying prestress near the top surface, and the stress comparison and crack control effect were analyzed. The results show that under the working conditions of uniform temperature rise + sunshine and uniform temperature drop + suddenly decreased temperature, only increasing the thickness of surrounding concrete or adding shear nails cannot meet the requirements of the tensile stress control. Setting chord supports or placing the steel plate has a poor crack control effect, and applying prestress can obviously reduce the tensile stress of concrete at arch foot; The two combination schemes of applying prestress + adding shear nail and adding prestress + increasing the thickness of surrounding concrete show a good crack control effect under four working conditions.