Blockchain facilitates information exchange and financial trading. Blockchain public data accessibility compromises user transaction privacy. To address this problem, we propose a \(\underline{P}ede\underline{r}sen\, C\underline{o}mmitment-based\, Transaction\, Hiding\, Sche\underline{m}e\, for\, Blockcha\underline{i}n\, \underline{S}yst\underline{e}m\) (PROMISE). PROMISE utilizes the concealment and additive homomorphism of Pedersen commitments, integrated with Zero Knowledge Proof (ZKP) to realize amount hiding and confidential verification in transactions. Furthermore, PROMISE conceals transaction relationships through non interactive mixing and obfuscates user activity patterns via disguised transactions. Experimental evaluation shows that under high load conditions, PROMISE maintains transaction hiding while achieving a throughput rate of over 160 tps.