(1) Reservoir began construction on October 1973.

(2)The old city reservoir project completion by the end of 1981, when agricultural irrigation and power generation. To carry out a variety of business and try to camp tourism, began only a motor boat, motorboat 3. The old city reservoir is under the County Water Conservancy Bureau, a Division-level units.

(3) In 1986, Longqingxia Scenic Area "I love Beijing mountain and water", was named one of the new Beijing 16 King.

(4) In 1987, the formal establishment of the department prepared establishment of Longqingxia travel company, renamed the old city reservoir management office for Longqingxia system is converted to a sub-division level units. The county government start preparatory in Longqingxia, the first session of the Ice Lantern Art Festival, the beginning of the year successfully held the first session of the Ice Lantern Art Festival. Since then, the traditional project of the Ice Lantern Art Festival as a winter tourism in Beijing, continues to this day. That year, the Yudu Hill North Building and East Restaurant (now the Longqingxia Restaurant) completed and open for business. North Building, 150 beds Longqing Gorge Restaurant host 350 guests. To rebuild the King temple.

(5) In 1989, 20 new boat battery, the new "Flying" and "bumper car" tourism and entertainment projects. New repair a cave, and proceed to build the "magic world" attractions.

(6) In 1990, two new 251 double-deck catamaran vessel Longqingxia system is converted to the division level, into the two groups of counties.

(7) In 1991 to begin construction of the the Yudu Villa West Wing and Chu Sau Yuen Restaurant: West Wing a total of 116 beds, restaurant to accommodate 300 people dining.

(8) May 23, 1992, General Secretary Jiang Zemin browse Longqingxia, and the question of "Longqingxia" in the name. The magical world of attractions began to receive visitors in October 1992.

(9)In 1993, Longqingxia the construction of office buildings.

(10)In 1994 removal of the compound cottage, began to build a garden park.

(11)In 1995 joint venture to build the Dragon Palace Park training center was opened on June 28; a total of 110 beds.

(12)In 1996 joint venture to build the Dragon elevator opened on June 28. Year assessment activities in the city civilization scenic scenic Longqingxia was named the "civilized scenic and glorious title remained ever since.

(13)In 1997 transformation of the magical world of attractions for flowers hole.

(14)In 1998 new lifts and the slideway two entertainment. The way of long-term lease, development of fairy hospital scenic. October Longqingxia joined Beijing Enterprises Holdings Limited.

(15)In early 2000, Longqingxia travel company, and Zhang Shan town (was Jin home Baoxiang) joint development of joint-stock form of jade crossing Mountain Scenic Area.