The work aims to improve the adhesion and heat resistance of acrylate pressure sensitive adhesive (aPSA) with a novel biomass material. A kind of aPSA was prepared with pinecone powder (EPC) as modifier. The effects of EPC content on the initial tack, holding power, 180° peel strength, glass transition temperature (Tg), thermal stability and high temperature resistance of aPSA were discussed in detail. Results showed that the EPC could effectively improve the cohesion strength, adhesive and heat resistant performance of pressure sensitive adhesive. When the EPC amount of 4% (relative to the total mass of dry matter of pressure sensitive adhesive) was used, aPSA had a relatively good comprehensive performance, and its holding power and 180° peel strength increased by 120.0% and 46.2%, respectively, compared with the unmodified system. In addition, the 10% mass decomposition temperature and Tg increased by 11 ℃ and 40 ℃, respectively. In brief, the prepared aPSA can be used at 140 ℃, and this method can be used to extend the application of EPC.