Abstract: A notebook computer support seat which can be conveniently folded and carried is the support seat which is made by lightweight but stiff aluminum plates pivoted by hinges. A support arm on a base plate can be reversely inserted into an insertion hole of a front plate, projected support pieces can support the notebook computer, and insertion blocks at a tail end of a support plate or another coaxial inner support plate can be inserted into any set of insertion holes of the base plate according to an angle required by a user. The present invention can be folded into a plane shape, to facilitate being placed in a suitcase with the notebook computer, for carrying.