In order to share housing property and share the right to use a house and solve the problems of dependency on a central server during property right division, after-division transaction and rental allocation, non-transparent transaction, instant transfer to accounts and the like, the invention discloses a property right rental and rent division method based on the blockchain technology, the methodis characterized by comprising the following steps of dividing the property right of the house, and recording divided property right information through a blockchain; transacting the property right of the house, and recording transaction information and property right ratio information after the transaction through the blockchain; renting out the house, and recording a first smart contract of therented house through the blockchain; leasing the house, and recording a second smart contract of the rented house through the blockchain; allocating rent settlement, and recording the performance information of the second smart contract and the first smart contract through the blockchain. The technical scheme for house sharing and leasing is also applicable to sharing and renting leisure space such as combined mobile houses, motor homes, automobiles, yachts, cruise ships, airplanes, aircraft and the like.