The militants blew themselves up outside the camp after they were prevented by security forces from entering, an army statement said.
"The armed forces were able today to foil a large terrorist operation," the military said.
Jihadists who have declared allegiance to the Islamic State group (IS) have killed hundreds of soldiers and policemen in the Sinai since the military ousted Islamist president Mohamed Morsi in 2013, following mass protests against him.
More than 100 jihadists and at least 22 soldiers have been killed in an ongoing operation launched on February 9 against the jihadists, according to army figures.
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