Abstract. In our present work, we study the observed polarization characteristics of comet Halley using a mixture of aggregates and compact spheroidal particles, with composition of silicate and organic material. Aggregates correspond to a mixture of Ballistic Cluster-Cluster Aggregate (BCCA) and Ballistic Agglomeration with migration 2 (BAM2) with some suitable mixing ratio. The compact solid particles correspond to spheroidal particles (prolate, oblate and spherical) with some size distribution. It is found from our work that the proposed model successfully reproduced the observed linear polarization data of comet Halley at wavelengths 0.365 μ m, 0.485 μ m and 0.684 μ m.