Taking mobile pattern into consideration can bene¯t routing performance in Delay tolerant networks (DTN). Based on common sense, the more similar the mo- bile patterns of nodes are, the more stable their relative positions are resulting in a connection with a longer du- ration. In this paper, a scheme named Similarity degree based Mobile pattern aware routing (SD-MPAR) is pro- posed. A comprehensive metric called similarity degree is applied to scale the degree of similarity between the mobile pattern of nodes which includes deviation of the sender's speed direction from that of the destination, and distance from the sender to the destination. Similarity degree is also a key factor to decide the next hop. A message is forwarded to the next hop node with the largest similarity degree. Through theoretical analysis and simulation, SD- MPAR shows the advantages deliver ratio, overhead, de- liver latency and average number of hops over other rout- ing schemes including epidemic and distance-based rout- ing.