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Doubly excited intrashell 2p2 3pe states in heliumlike N5+ and O6+ ions are calculated by using the originalSlater-type wave function and the modified configuration interaction wave function. Using the modified Slater-type wave function having up to 393 and 276 terms for N5+ and O6+, we predicted the energy positions of thediscrete 2p2 3pe states for these two heliumlike ions. They are -11.140748676 a.u. And -14.726670741 a.u.,respectively. Several expectation values ofi and rm12 (-1 n 1, and -1 m 2) are also given in the presentletter. The present results indicate that the modified Slater-type wave function in which r coordinatesare incorporated is effective and powerful for the description of the 2p2 3 pe state showing strong correlationeffect in two-electron systems.