The employment of off-staff workers by means of labor dispatch in government agencies and institutions has its special historical background and economic reasons. Judging the legal effects of the labor dispatch agreement, as a result, should be based on our national conditions, rationally looking at the role and status of labor dispatch in China's labor market. In labor dispatch, according to this study, the nature of employment units should not be regarded as the determinants of the new employment unit of the dispatched workers. Thus, caution should be focused on seeking the way of judging how the employing unit undertakes the legal duties of the actual employing unit by defining "reverse labor dispatch" or applying the substantive employer's judgment rules. Therefore, there is an urgent need for explicit legislation whether the laborer has the right to require the labor dispatch unit to sign an open-ended labor contract.