This paper prepared the TLA modified asphalt using Trinidad Lake Asphalt( TLA)and matrix asphalt,through the experiment,from the high temperature performance,water stable performance and low temperature performance three aspects compared the road performance of TLA modified asphalt and SBS modified asphalt two mixtures,the results showed that:the high temperature,water stability performance of TLA to asphalt mixture improved,to low temperature performance had little influence.%采用特立尼达湖沥青（ TLA）与基质沥青制备了TLA改性沥青，通过试验，从高温性能、水稳定性能和低温性能三方面着手，对比了TLA改性沥青与SBS改性沥青两种混合料的路用性能，结果表明：TLA对沥青混合料的高温、水稳定性能有所提高，对低温性能影响不大。
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