The invention discloses a transmission quality scalable data collecting method in delay tolerant mobile sensor network which substantially solves the problems that the method of the prior art determines a forwarding strategy only based on a previous status of a node and indistinguishably processes all data; and the transmission quality scalable data collecting method in delay tolerant mobile sensor network belongs to the field of wireless sensor network. The transmission quality scalable data collecting method in delay tolerant mobile sensor network comprises the following steps: firstly, arranging sensor nodes, partitioning network areas, and numbering the nodes and the network areas; secondly, taking advantage of the Markov property of the movement process of the nodes, predicting the locations of the nodes, and updating the forwarding probability of the nodes in real time; additionally, collecting and forwarding data in combination with the importance of the data, until the data is received by the sink node. The transmission quality scalable data collecting method in delay tolerant mobile sensor network is able to dynamically change the transmission quality of data based on the motion trail of the nodes and the importance of data to be transmitted, thus ensuring the timeliness and reliability of important data transmission, and reducing the network overhead.