The invention provides an equipment leasing method and system based on a blockchain. The method comprises the following steps that: a leaser node generates an intelligent contract according to a leasing protocol of a leaser and a lessee, and deploys the intelligent contact on an industrial blockchain; an equipment node obtains the blockchain account information, which is recorded by the industrial blockchain, of the lessee, and whether the blockchain account amount of the lease is lower than the appointed threshold value of the account or not is judged; when the account balance is lowered than the appointed threshold value of the account, the operation function of leased equipment is restricted; when the virtual currency balance of the account is not lower than the appointed threshold value of the account, the leased equipment is controlled to permit to normally operate; and the equipment node triggers the intelligent contact according to the operation situation of the leased equipment to carry out a corresponding rent transfer operation on the blockchain account of the leaser and the lessee. Therefore, the public, transparent, traceable and untamped recording of the automatic and intelligent management and transaction process of the leased equipment and rent transaction can be realized, and leasing transaction managing or auditing efficiency can be improved.