Naphthalenetetracarboxylic acid diimide derivatives and an electrophotographic photoconductive material containing the naphthalenetetracarboxylic acid diimide derivatives. The naphthalenetetracarboxylic acid diimide derivatives have a structure represented by the following formula: ##STR00001## in which, R.sub.1 and R.sub.2 are each independently selected from the group consisting of a substituted or non-substituted C.sub.1-C.sub.20 alkyl group; a substituted or non-substituted C.sub.1-C.sub.20 alkoxy group; a substituted or non-substituted C.sub.6-C.sub.30 aryl group; and a substituted or non-substituted C.sub.7-C.sub.30 aralkyl group; and halogen. The electrophotographic photoconductive material includes the naphthalenetetracarboxylic acid diimide derivatives as an electron transferring material.