A thermostat was designed by black -box method principle for the bee larvae experimental .It used organic glass as the overall framework , and throughed the single chip microcomputer ( SCM) to con-troll its temperature .The results showed that it was simple and convenient to operate , with good constant temperature was characteristic .When its temperature controlled in ( 35 ±1 )℃, it could meet the re-quirements of bee larvae experiment basically .%采用黑箱法原理，利用有机玻璃板制造总体框架，通过单片机进行系统的恒温控制，设计出了一种针对蜜蜂幼虫实验用的恒温箱。结果表明，该恒温箱具有操作方便、简单、恒温性好等特点。当温度控制在（35±1）℃时，基本可以满足蜜蜂幼虫的实验要求。
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