一、方式一 ~~~sql st_distance 计算的结果单位是度，需要乘111195（地球半径6371000*PI/180）是将值转化为米。SELECT *,(st_distance(point(lng,lat),point(116.3424590000,40.0497810000))*111195/1000 ) as juli FROM table ORDER BY juli ASC ~~~ 二、方式二 ~~~sql select *, ROUND(6378.138*2*ASIN(SQRT(POW(SIN(({$lat}*PI()/180-lat*PI()/180)/2),2)+COS({$lat}*PI()/180)*COS(lat*PI()/180)*POW(SIN(({$lng}*PI()/180-lng*PI()/180)/2),2)))*1000) AS juli from table order by juli asc ~~~ 三、方式三 ~~~sql 附近30KM内站点，并按照距离由近及远排列SELECT *,round(st_distance_sphere(point(lng,lat),point(116.382615,39.91024))/1000,2) as juli FROM a HAVING juli<30 ORDER BY juli ASC ~~~