To realize water solubility and decomposition in high temperature, reduce costs, and shorten a baking time, by forming an electron emission part for an electron emitting element, having the electron emission part between opposite electrodes on a base plate, by a specific organic metallic compound.

An organic metallic compound for forming an electron emission part is to be a compound expressed in (RCOO)lM(NH2CH2CH2NH2)n, where, R; an alkyl group having a number of carbon 1-4, l=2-4, n: 2 and 3, and M: metal. Element electrodes 2 and 3 are formed on a base plate 1, and thereon the droplet of a solution, composed of the organic metallic compound for forming the electron emitting part, is imparted to dry and bake are droplet to form a conductive film 4. Electrification treatment is made between the electrodes 2 and 3, thereby forming the electron emission part 5, having changed structure, on a portion of the film 4. An electron emission characteristics can be stabilized by thus forming the electron emission part 5.