The invention discloses a transportation mode determination method based on triangulation location data of a mobile phone. A mobile phone user transportation chain is constructed based on mobile phonetriangulation location data; on the basis of a penalty factor, the obtained mobile phone user transportation chain data are cleaned to remove noise data, and an all-day mobile phone user transportation chain is reconstructed; according to the all-day mobile phone user transportation chain, time-dimension fine granularity division is carried out to form a plurality of sub transportation periods, total transportation distances and straight transportation distances of all sub transportation periods are calculated respectively, and non-linear coefficients of all sub transportation periods are obtained; multi-mode transportation modes of the sub transportation period of the mobile phone user are identified; and on the basis of the identified multi-mode transportation mode proportion of the subtransportation period of the mobile phone user, a main transportation mode of the all-day transportation period is identified. According to the invention, the transportation mode of the individual user can be obtained based on the on-aggregation level, so that the complexity of the model is reduced and the prediction accuracy is improved.