研究了一维不规则多重垒结构中电子共振隧穿的相对论效应．结果表明系统同时存在两类共振隧穿，一类由能量量子化和长度量子化同时决定，另一类仅由δ势强度决定．与非相对论情形比较后可知，前者是结构型的共振隧穿，后者才是单纯由相对论效应造成的，而且阱宽涨落对相对论型共振隧穿没有影响． The relativistic effect of electron resonance tunneling in one-dimensional irregular multi-base structure is studied. The results show that there are two kinds of resonant tunneling simultaneously in the system, one is determined by the quantization of energy and the quantization of length, and the other is only determined by the δ-potential. Compared with the non-relativistic situation, we can see that the former is a structural resonant tunneling, the latter is simply caused by the relativistic effect, and the well width fluctuation has no effect on the relativistic resonant tunneling.