A method for releasing a route in computer interlocking, comprising: judging, in a first step, whether a train normally drives into a current locked section; if a result of the first step is yes, judging, in a second step, whether the train drives away from the current locked section; if a result of the second step is yes, judging, in a third step, whether a rear section of the current locked section is released; and if a result of the third step is yes, releasing, in a fourth step, the current locked section, wherein if any of the judging results of the first, the second, and the third steps are no, keeping the current locked section in a locked state, wherein the step of judging whether the train normally drives into the current locked section includes: judging, in a fifth step, whether the current locked section is turned into an occupied state from an idle state; if a judging result of the fifth step is yes, judging, in a sixth step, whether the rear section is turned into an idle state from an occupied state; and if a judging result of the sixth step is yes, determining that the train normally drives into the current locked section, wherein the step of judging whether the train drives away from the current locked section includes: judging, in a seventh step, whether a front section is turned into the occupied state from the idle state; if a judging result of the seventh step is yes, judging, in an eighth step, whether the current locked section is turned into the idle state from the occupied state; and if a judging result of the eighth step is yes, determining that the train normally drives away from the current locked section. judging, in a first step, whether a train normally drives into a current locked section; if a result of the first step is yes, judging, in a second step, whether the train drives away from the current locked section; if a result of the second step is yes, judging, in a third step, whether a rear section of the current locked section is released; and if a result of the third step is yes, releasing, in a fourth step, the current locked section, wherein if any of the judging results of the first, the second, and the third steps are no, keeping the current locked section in a locked state, wherein the step of judging whether the train normally drives into the current locked section includes: judging, in a fifth step, whether the current locked section is turned into an occupied state from an idle state; if a judging result of the fifth step is yes, judging, in a sixth step, whether the rear section is turned into an idle state from an occupied state; and if a judging result of the sixth step is yes, determining that the train normally drives into the current locked section, wherein the step of judging whether the train drives away from the current locked section includes: judging, in a seventh step, whether a front section is turned into the occupied state from the idle state; if a judging result of the seventh step is yes, judging, in an eighth step, whether the current locked section is turned into the idle state from the occupied state; and if a judging result of the eighth step is yes, determining that the train normally drives away from the current locked section. judging, in a fifth step, whether the current locked section is turned into an occupied state from an idle state; if a judging result of the fifth step is yes, judging, in a sixth step, whether the rear section is turned into an idle state from an occupied state; and if a judging result of the sixth step is yes, determining that the train normally drives into the current locked section, wherein the step of judging whether the train drives away from the current locked section includes: judging, in a seventh step, whether a front section is turned into the occupied state from the idle state; if a judging result of the seventh step is yes, judging, in an eighth step, whether the current locked section is turned into the idle state from the occupied state; and if a judging result of the eighth step is yes, determining that the train normally drives away from the current locked section. judging, in a seventh step, whether a front section is turned into the occupied state from the idle state; if a judging result of the seventh step is yes, judging, in an eighth step, whether the current locked section is turned into the idle state from the occupied state; and if a judging result of the eighth step is yes, determining that the train normally drives away from the current locked section.