In order to obtain rock asphalt modified asphalt material with higher fusion degree and better performance, ‘activated’ wet processing method was applied to produce modified Buton Rock Asphalt (BRA), and its high and low temperature performance was tested. Firstly, the self-developed ‘activation’ wet processing technology was described. Several crushing methods were combined to activate the rock asphalt to make it broken more fully and evenly. After obtaining the ‘activated’ rock asphalt modified asphalt, the high temperature performance and low temperature performance of asphalt were analyzed by both conventional tests and the SHRP rheological tests. The tests results show that BRA produced by the ‘activated’ wet processing method has improved its high temperature performance. With the addition of rock asphalt modifier, the softening point of asphalt has been increased. Meanwhile, due to the ash content of rock asphalt, ductility is not suitable to evaluate its low temperature performance, therefore the PG classification of SHRP test is used to evaluate the high temperature and low temperature performance of the BRA. The high temperature performance of the ‘activated’ BRA before and after aging is higher than which of the 70# original asphalt, and better than which of the SBS I-C modified asphalt before aging. However, its fatigue PG level is lower than that of base asphalt and SBS I-C modified asphalt, which indicates that the durability should be concerned, and the overall performance should be comprehensively evaluated combinated with the mixture tests.