Understanding the interactive force and bonding force between aramid fibres and fibrids is important in design wet forming and hot pressing technologies for manufacturing aramid paper sheet and in producing the paper sheets of desirable properties. In this study, the morphology of both aramid fibres and fibrids were observed with SEM and atomic force microscopy (AFM). The adhesion force between aramid fibres and fibrids were measured by AFM with a small piece of fibrid attached to a regular AFM tip. The results show that the adhesion force between aramid fibrid and fibrid is 9.20 +/- A 0.86 nN and that between fibrid and fibres is 1.71 +/- A 0.42 nN. This explains the importance of the fibrids in the aramid paper sheet in helping bonding between the aramid fibres and gives the resulting sheet a strong physical structure. The adhesion force measured by AFM was confirmed by a theoretical calculation with the Derjaguin-Muller-Toporov (DMT) theory.