A computer-implemented data authorization information acquisition method executed by a data authorization information acquisition device, comprising: obtaining a data use permission application submitted by a data requestor for first data; determining a first permission approver of the first data based on the data use permission application, wherein the first permission approver is an owner of the first data; sending the data use permission application to the first permission approver; obtaining first status query information submitted by the data requestor for the data use permission application, wherein the first status query information comprises the data use permission application; querying the data use permission application from a blockchain network based on the first status query information; obtaining a query result returned by the blockchain network for the first status query information; sending the query result to the data requestor; obtaining acknowledgement information of the first permission approver; sending the data use permission application and acknowledgment information of the first permission approver to a second permission approver after obtaining the acknowledgement information, when there are at least two permission approvers; storing the acknowledgement information in a local device; obtaining second status query information submitted by the data requestor for the data use permission application, wherein the second status query information comprises the data use permission application; querying the data use permission application from the local device based on the second status query information; sending the acknowledgement information to the data requestor; generating data authorization information based on the acknowledgement information; storing the data authorization information in the blockchain network; and sending the data authorization information to the data requestor. obtaining a data use permission application submitted by a data requestor for first data; determining a first permission approver of the first data based on the data use permission application, wherein the first permission approver is an owner of the first data; sending the data use permission application to the first permission approver; obtaining first status query information submitted by the data requestor for the data use permission application, wherein the first status query information comprises the data use permission application; querying the data use permission application from a blockchain network based on the first status query information; obtaining a query result returned by the blockchain network for the first status query information; sending the query result to the data requestor; obtaining acknowledgement information of the first permission approver; sending the data use permission application and acknowledgment information of the first permission approver to a second permission approver after obtaining the acknowledgement information, when there are at least two permission approvers; storing the acknowledgement information in a local device; obtaining second status query information submitted by the data requestor for the data use permission application, wherein the second status query information comprises the data use permission application; querying the data use permission application from the local device based on the second status query information; sending the acknowledgement information to the data requestor; generating data authorization information based on the acknowledgement information; storing the data authorization information in the blockchain network; and sending the data authorization information to the data requestor. <EOS>