Opportunistic vehicular ad hoc networks has extensively attracted attention from both industry and academia in recent years.However,the presence of selfish behavior of nodes could cause a severe threat to well designed opportunistic routing scheme,and even jeopardizing the whole network.In this paper,we propose a privacy-preserving distance-based incentive scheme,particularly to address issues of the nodes selfish behavior and the location privacy,to achieve three properties through secure multiparty computation and homomorphic encryption methods,such as the confidentiality of nodes position information,the integrity of the message carried distance,and the correctness of reputation computation.The proposed incentive scheme can not only satisfy following security requirements,such as mutual authentication,non-repudiation and conditional privacy-preserving,but also stimulate the active helpers and suppress bad behaviors fairly and reasonably.The security analysis and performance evaluation show that the proposed framework is efficient,safe and practical.