Abstract: IPOW (Improve Proof of Work) based on POW is proposed, which introduces control weight, encourage threshold, effective time and reward factor, and relational algorithms are given. The final accounting right R was obtained by controlling weight, etc. The experimental results show that compared with POW, IPOW consensus mechanism weakens the dominant role of computing power that plays in obtaining accounting right. The greater the control weight, the easier it is to obtain accounting right. It also reduces the probability of nodes in committing crime and reduces the phenomenon that the rich will get richer and richer.