ZigBee　is　a　wireless　network　protocol　which　is　specifically　designed　for　low-rate　sensor　and　industrial　control　network.　It　is　widely　used　in　many　fields　including　building　automation　network,　building　security　system,　industrial　control　networks,　remote　meter　reading,　PC　peripherals,　etc.　This　paper　discusses　the　CC2420-based　ZigBee　wireless　network　systems.　In　the　implementation　of　the　system,　MSP430F135,　the　MCU　and　the　Chipcon＇s　CC2420　RF　chip　are　used.　The　hardware　circuitry　is　designed　by　Aye-Tech　Electronics　Inc.　The　system　realized　a　ZigBee　wireless　network　application.　It　had　showed　flexible　and　highly　efficient　in　practical　applications.　It　can　also　be　combined　with　The　Internet　of　Things　in　practical　applications.　©　2010　IEEE.