Disclosed is an anti-spying encrypted keyboard, particularly an anti-spying encrypted keyboard having an anti-spying detection protective system in multiple aspects. The anti-spying encrypted keyboard comprises a key panel and a main control board. The main control board includes a control circuit with self-destruct function. The control circuit is fixedly sealed on the back of the main control board by an anti-spying protective mechanism. The anti-spying protection mechanism is electrically connected with the control circuit. The anti-spying protection mechanism comprises: an anti-spying cover (31) having a bottom surface (311) and a side wall (312) extending perpendicularly along the edge thereof, the side wall (312) together with the bottom surface (311) forming a first cavity (313); a rigid anti-spying circuit board (32) being placed inside the first cavity (313), and a second cavity (326) being formed by a bottom side and a side wall with the circular edge, the bottom side of the second cavity (326) is provided with at least one pair of connecting fingers (3252) for the anti-spying circuit (32); and a conductive adhesive (34) placed inside the second cavity (326) to make the connecting fingers (3252) on the rigid anti-spy circuit board (32) and the connecting fingers (3252) on the control circuit of the main control board connect electrically.